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FOR THE YEAR : 2018-19

CONTENTS PAGES

REFERENCE DATA 1 -- 3

NOTES ON BASIC RATES 4 -- 4

DATA RATES 5 -- 73

ANNEXURES 74--89

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WATER RESOURCES DEPARTMENT

SCHEDULE OF RATES

TUNNEL AND ALLIED WORKS

REVISED BY SCHEDULE OF RATES COMMITTEE

CHAPTER- WRD: 6

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FOR THE YEAR : 2018-19

COST OF MATERIALS:1 Acetylene gas per cum `: 404.002 Air hose 25 mm dia per Rm `: 204.003 Binding wire per kg `: 57.004 Cement 43 Gr per kg `: 5.565 Coarse aggregate 10-4.75 mm / cum `: 1615.006 Coarse aggregate 20-10 mm / cum `: 1325.007 Coarse aggregate40-20 mm / cum `: 1015.008 Concrete admixture( Super plasticiser ) per ltr `: 111.009 Cross bit ( TC ) 75 mm dia per No. `: 9940.00

10 Detonating fuse coil per Rm `: 6.0011 Detonator delay type per No. `: 12.0012 Detonator electric per No. `: 6.0013 Detonator ordinary per No. `: 3.0014 Explosive ( small dia ) per kg `: 52.0015 Extension rod with coupling sleeve per Rm `: 4271.0016 Fine aggregate/ sand ( screened ) per cum `: 1000.0017 G I Pipe 80 mm dia per Rm `: 492.0018 G I Pipe100 mm dia per Rm `: 747.0019 G.I. Bolts and Nuts per kg `: 90.0020 Guniting nozzle per No. `: 381.0021 Jungle wood planks per cum `: 35068.0022 Jack hammer drill rod 1.5 m per No. `: 4054.0023 Jack hammer drill rod 2.5 m per No. `: 6723.0024 M S Bolts & Nuts per kg `: 90.0025 Oxygen gas per cum `: 84.0026 Plain G.I. Sheet per tonne `: 62337.0027 Rails 30 kg / m per tonne `: 47458.0028 Reinforcement steel per kg `: 49.0329 Resin bond cement grout capsule per No. `: 73.0030 Rivets per kg `: 95.0031 Shalimastic sealing compound per kg `: 131.0032 Shutter oil per ltr `: 33.0033 Stone chips at dump yard per cum `: 435.0034 Structural steel angle / channel / beam / bar per kg `: 39.5535 Structural steel plate / flat per kg `: 39.5536 Un-coursed rubble stones at dump yard per cum `: 360.0037 Water hose 20 mm dia per Rm `: 188.0038 Welding electrodes ( general purpose ) per No. `: 10.0039 Wire rope per kg `: 163.00

ROYALTY CHARGES : Per tonne1 Sand / Fine aggregate `: 60.002 Stone / Coarse aggregate / Chips `: 60.00

1

TUNNEL AND ALLIED WORKS - REFERENCE DATA


LEAD, LOADING & UNLOADING CHARGES: 1 km lead Loading Unloading1 Cement `: 78.80 139.70 139.702 Earth / Sand / Gravel `: 66.60 129.20 18.103 Steel `: 78.80 139.70 139.704 Stone / Coarse aggregate `: 101.50 152.50 76.25

HIRE CHARGES OF MACHINERY: Crew charges1 Agitator car truck mounted 2 cum per hour `: 483.00 1044.00 267.002 Air compressor 15 cmm ( ele ) per hour `: 71.00 922.00 178.003 Air compressor 8.5 cmm ( ele ) per hour `: 73.00 415.00 167.004 Bending machine per hour `: 26.00 111.00 131.005 Batching plant 6 cum / hr rated capacity `: 86.00 184.00 321.006 Concrete pneumatic placer pump per hour `: 92.00 5.00 85.007 Convey mucker per hour `: 501.00 257.00 178.008 DG set 30 KVA `: 44.00 759.00 134.009 Diesel loco 45 hp per hour `: 161.00 640.00 167.00

10 Drilling jumbo per hour `: 275.00 51.00 178.0011 Dumper 5 cum per hour `: 394.00 478.00 214.0012 Grout pump per hour `: 13.00 37.00 263.0013 Guniting equipment per hour `: 58.00 12.00 219.0014 Jack hammer per hour `: 10.00 7.00 334.0015 Pump 10 hp ( ele ) per hour `: 3.00 74.00 82.0016 Pump 20 hp ( ele ) per hour `: 7.00 148.00 82.0017 Pusher leg per hour `: 5.00 5.00 ---18 Tipper 5 cum per hour `: 229.00 359.00 167.0019 Tipping tub 1.5 cum per hour `: 21.00 12.00 ---20 Transformer 250 KVA per month `: 2301.00 --- ---21 Up-right drilling machine / Grinding machine `: 13.00 37.00 164.0022 Ventilation fan 20 hp per hour `: 4.00 148.00 28.0023 Vibrator ( ele ) per hour `: 5.00 7.00 158.0024 Waggon drill `: 147.00 12.00 263.0025 Welding transformer per hour `: 8.00 89.00 ---26 Winch 35 hp electric per hour `: 67.00 258.00 267.00

WAGES OF WORKERS: Per day1 Bar bender `: 436.002 Blasting helper `: 421.003 Carpentor Cl- II `: 421.004 Electrician `: 436.005 Fitter shuttering works `: 421.006 Mechanic Cl - I `: 436.007 Foreman `: 436.008 Helper fitter / erector / carpenter `: 421.009 Khalasi `: 436.00

10 Licensed Blaster `: 436.0011 Lineman `: 421.0012 Maistry `: 436.00

Fuel chargeHire charge

2


13 Mason Cl-I `: 436.0014 Mason Cl-II `: 421.0015 Mazdoor ( Cement handling ) `: 411.0016 Mazdoor ( Heavy) `: 411.0017 Mazdoor ( Light ) `: 411.0018 Pipe fitter `: 436.0019 Stone breaker ( Hammerman ) `: 421.0020 Stone chiseller Cl II `: 436.0021 Structural steel Marker / Erector `: 436.0022 Surveyor `: 736.0023 Tinsmith `: 436.0024 Turner / Driller `: 421.0025 Welder / Gas cutter `: 436.00

ELECTRIC SUB-STATION MATERIALS:1 RCC Pole 8m length (145kg/WL) including earth work, erection etc., `: 5125.002 Flood light 250/450 W ( HPMH/HPSodium vapour lamp ) `: 762.003 Flood light luminaire set (250W HPMH/HPSV with control gear box) `: 4876.004 Fluoscent tube light ( 2'/4'-36/40W) `: 34.005 Fluoscent tube light set ( Patti type with electronic ballast 1 x 4'-28W) `: 473.006 Moulded case Circuit breaker (four pole 700-800Amps 50kA) `: 35262.007 HT/LT Rabbit Conductor (6/3.15mm AI+6/3.15mm steel) `: 39831.008 PVC Armoured cable 10 sqmm and below (4 core-1.1KV LTUG cable) `: 101.009 PVC Armoured cable 16 sqmm (4 core-1.1KV LTUG cable) `: 119.00

10 PVC Armoured cable 25 sqmm (3.5 core-1.1KV LTUG cable) `: 140.0011 PVC Armoured cable 70 sqmm (3.5 core-1.1KV LTUG cable) `: 229.0012 Transformer 250 kVA `: 209694.00

OTHER DATA :1 Contractor's Overheads on Materials / Machinery / Labour % 5.002 Contractor's Profit on Materials / Fuel & Energy charges / Labour % 10.003 Demand charges on power supply per KVA / month `: 216.004 Electric Energy charges per kWhr `: 8.245 Insurance charges on machinery per annum % 1.006 Hidden cost on Labour % 15.00

Hidden cost on Labour ( additional for Tunnel works ) % 10.007 Rate of interest per annum % 9.008 Small Tools & Plant on Materials / Machinery / Labour % 1.009 Structural steel fabrication cost per kg `: 18.00

10 Sundries ( Lump sum rate for unquantified inputs ) `: 45.0011 Cost of Electric sub-station & Demand charges ( Annexure - 1 ) % 4.6012 Cost of Air and Water lines ( Annexure - 2 ) % 0.9013 Cost of Ventilation ( Annexure - 3 ) % 5.6014 Cost of Lighting inside / out side tunnel ( Annexure - 4 ) % 1.9015 Cost of Other enabling works ( Annexure - 5 ) % 1.50

3


NOTES ON SCHEDULE OF RATES TUNNEL AND ALLIED WORKS FOR THE YEAR : 2018-19

1. All notes under General Notes on Schedule of Rates and Notes on Lead, Lift, Loading andun-loading Charges are applicable to Tunnel and Allied Works also to the extent they arerelevant.

2. The basic rates are inclusive additional costs for working inside tunnel.

3. The basic rates are inclusive of scaling loose material, removal of under-cuts, cleaning bed andlighting and ventilation inside tunnel .

4. Unless otherwise specified the basic rates are inclusive of all lifts.

5. Unless otherwise specified the basic rates are inclusive of standard finish required for concretesurface.

6. For excavation and concrete lining works of approach / exit channels the basic rates asprovided under ' Canal and allied works ' and ' Canal cross drainage works ' shall be adopted.

7. For intake structure, tunnel portals, retaining walls, pitching etc., the rates as provided under 'Dam and allied works ' shall be adopted.

8. The lead charges, wherever applicable, for all materials under various items shall be considered only between quarry/ source of supply and batching plant / fabrication site. Further conveyanceof concrete / fabricated parts / other materials upto final placing site inside tunnel is included inthe basic rates upto 1 km.

9. Cement content specified for cement concrete works in the item description is based on theoritical design mix computations and is exclusive of wastage and requirement for anyincidentals. The actual cement content may vary based on trial mix studies. A suitable clause shall be included in tender for regulating payment for any upword or downword variation in cement content.

10. The quantities of materials including wastage, requirements for incidentals etc., for workingout additional lead charges shall be as per the statement of requirement of materials underthis section.

4


SECTION: TUNNEL AND ALLIED WORKS. YEAR: 2018-19 ITEM No: WRD: 6.1

ITEM: Excavation for adit by tunnelling methods in all types of rock including cost of all materials,machinery, labour, ventilation, lighting, drainage, scaling excavated surface, removing andhauling excavated muck outside adit upto specified dump area and all other ancillary operations etc., complete with lead upto 500 m and all lifts.

DATA:Size of adit assumed ( finished section ) : 4.50 m dia Shape of adit assumed for excavation : D - shapeHeight of adit assumed ( finished section ) : 4.50 m Pay-line margin assumed : 0.20 mDiameter of adit upto pay line for excavation : 4.90 mDistance of dump yard from face : within 500 mHaulage of excavated muck : By dumpers

Pay line

Minimum excavation line

Excavated profile

TYPICAL CROSS SECTION OF ADIT / TUNNEL

1. Checking alignment and marking hole locations :Deploy drilling jumbo for 1 hour for marking hole locations.

2. Drilling holes :Full face method of excavation is assumed.Area of adit upto pay-line ( 0.5 x 0.7857x 4.9 x 4.9 )+( 4.9 x 2.45 ) : 21.43 sqmThe drilling pattern for excavation of tunnel / adit depends on the size and shape of tunnel, rockformation, type of explosive and the fragmentation of rock required to suite the type of mucking equipment. The drilling pattern shall ensure minimum over-break.

Cut holes

Easers

Trimmers

TYPICAL DRILLING PATTERN FOR ADIT / TUNNEL

5

TUNNEL AND ALLIED WORKS- DATA RATES


Generally, the cut holes and easers will be spaced at 650 to 750 mm grid and the trimmers willbe spaced at 500 to 600 mm apart along the periphery of excavation area.Considering this, the number of holes for tunnel excavation will be generally in the range of 2.5 to 3 per sqm of cross sectional area upto pay line for small tunnels ( cross sectional area lessthan 45 sqm ) and in the range of 2.0 to 2.5 per sqm of cross sectional area for large tunnels.

For rate analysis 2.5 holes per sqm of cross sectional area upto pay line considered for adit.Number of holes for full face excavation ( 21.43 x 2.5 ) : 54 NosDepth of holes : 2 mExtra drilling considered at 10 percent for inclined cut holes and for any secondary blasting oflarge fragments during mucking.Depth of drilling for 54 holes ( 54 x 2 x 1.10 ) : 119 mAverage rate of drilling per hour per jack hammer : 5 mTime for 4 jack hammers with pusher leg for drilling. ( 119 / 4 / 5 ) say : 6 hoursTime for 1 air compressor 15 cmm for air supply to 4 jack hammers : 6 hoursTime for drilling jumbo for drilling : 6 hoursTime for 10 hp pump for water supply to drilling work. : 6 hours

3. Loading explosive and blasting :Depth of pull per blast for 2 m deep holes : 1.80 mQuantity of in-situ excavation per blast ( 21.43 x 1.80 ) : 38.6 cumQuantity of explosive small dia per blast @ 1.00 kg per cum : 38 kgQuantity of explosive for secondary blasting @ 5 % : 2 kgQuantity of delay detonators per blast : 54 Nos.Quantity of electric detonators for secondary blasting ( LS ) : 5 Nos.Fuse coil : 120 RmTime for drilling jumbo for loading explosives. : 1 hour

4. Defuming and scaling loose materials: No machinery other than ventilation fans are required. For defuming adit ventilation fans are installed in duct system at about 300 m interval and are run for about 1 hour after each blast.Consider 20 hp fan 1 No. for 1 hour for defuming.

5. Mucking excavated rock :Quantity of muck to be removed per blast considering 40 % bulkage : 54 cumCapacity of dumper per load : 5.00 cumQuantity of muck per load considered under adit working conditions : 4.50 cumLoading cycle time:Turning / moving and spotting : 1 minuteLoading muck by convey mucker and work force : 20 minutesCycle time of loading dumper per load of 4.50 cum : 21 minutesHaulage cycle time:Running time from loading point to dump yard @ av 10 km / hr : 3.0 minutesTurning and unloading : 2.0 minutesReturn trip to reversing point @ av 15 km / hr : 2.0 minutesCycle time for haulage per load of 4.5 cum : 7.0 minutesSince the waiting time will be more than the running time if 2 dumpers are deployed deploy1 dumper for conveying muck.Round trip cycle time of dumper say : 30 minutesQuantity of muck disposal per hour / dumper : 9.00 cumTime for 1 dumper for conveying muck @ 9 cum per hour : 6 hoursTime for convey mucker and labour force for loading : 6 hours

6


6. Overall cycle time :Checking alignment and marking hole locations : 2.00 hoursDrilling holes : 6.00 hoursLoading explosive and blasting : 2.00 hoursDefuming and scaling loose rock fragments : 2.00 hoursMucking excavated rock : 6.00 hoursBed cleaning, support fixing, rock bolting, lighting etc say : 6.00 hoursTotal cycle of excavation per blast of 1.8 m length : 24.00 hours

7. Requirement of materials :Explosive small dia ( 38 + 2 ) : 40 kgElectric short delay detonators ( 54 x 1 ) : 54 NosElectric detonators for secondary blasting ( 1 x 5 ) : 5 NosFuse coil : 120 Rm

8. Requirement of machinery :Deploy drilling jumbo for marking (1 hr) / drilling (6 hrs) / loading explosive (1 hr) : 8 hoursDeploy air compressor 15 cmm for air supply to 4 jack hammers : 6 hoursDeploy 4 jack hammers with pusher leg for drilling. : 6 hoursDeploy 10 hp pump for water supply to drilling work. : 6 hoursDeploy 20 hp ventilation fan for defuming : 1 hourDeploy convey mucker for loading excavated rock : 6 hoursDeploy 1 dumper for conveying muck : 6 hours

9. Requirement of workforce ( other than machinery crew ) :Surveyorfor checking alignment and marking hole locations for drilling : 0.5 No.Foreman for supervising drilling of holes and other operations : 1 No.Fitter / Mechanicfor extending air / water lines : 2 Nos.Blaster ( Licensed ) : 1 No.Helper blasting : 2 Nos.Hammerman for scaling : 2 Nos.Maistry 1 in each shift : 3 Nos.Khalasi for mucking shift : 4 Nos.Heavy mazdoorfor mucking shift : 4 Nos.for other 2 shifts 1 No each shift : 2 Nos.Light mazdoorfor cleaning & miscellaneous : 1 No.

10. Use rate of materials:Cost of drill rod 2.5 m long @ `: 6723.00 / No. `: 6723.00Life of drill rod with reconditionong : 150 mUse rate of drill rod per Rm drilling ( cost / life ) `: 44.82Length of air and water hose assumed : 25 m eachCost of 25 mm dia air hose 25 m @ `: 204.00 / Rm `: 5100.00Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 6.38Cost of water hose 25 m each @ `: 188.00 / Rm `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88

7


RATE ANALYSIS UNIT : 38.60 cumA. MATERIALS: Sl No Unit Amount

in `.1 Small dia explosive kg 40.00 52.00 2080.002 Delay detonators Nos 54.00 12.00 648.003 Electric detonators Nos 5.00 6.00 30.004 Detonating fuse coil Rm 120.00 6.00 720.005 Use rate of drill rod 2.5 m long Rm 119.00 44.82 5333.58

Reconditioning charges @ 10% 533.366 Use rate of air hose Hour 24.00 6.38 153.007 Use rate of water hose Hour 24.00 5.88 141.008 Sundries( paint / template etc ) LS 14.00 45.00 630.00

Total `: 10268.94Add for small Tools and Plants @ 1% `: 102.69Add for Contractor's Profit @ 10% `: 1026.89Add for Contractor's Overheads @ 5% `: 513.45

Total cost of Materials : `: 11911.97

B. MACHINERY: Sl No Unit Amount

in `.1 Drilling jumbo Hour 8.00 275.00 2200.00

Fuel / Energy charges Hour 8.00 51.00 408.002 Air compressor 15 cmm ( ele ) Hour 6.00 71.00 426.00

Fuel / Energy charges Hour 6.00 922.00 5532.003 Jack hammer ( 4 x 6 hrs ) Hour 24.00 10.00 240.00

Fuel / Energy charges Hour 24.00 7.00 168.004 Pusher leg Hour 24.00 5.00 120.00

Fuel / Energy charges Hour 24.00 5.00 120.005 Convey mucker Hour 6.00 501.00 3006.00

Fuel / Energy charges Hour 6.00 257.00 1542.006 Dumper ( 1 x 6 hrs ) Hour 6.00 394.00 2364.00

Fuel / Energy charges Hour 6.00 478.00 2868.007 Pump 10 hp ( ele ) ( 1 x 6 hrs ) Hour 6.00 3.00 18.00

Fuel / Energy charges Hour 6.00 74.00 444.008 Ventilation fans 20 hp ( 1 x 1 hr ) Hour 1.00 4.00 4.00

Fuel / Energy charges Hour 1.00 148.00 148.009 Sundries(explosive van / magazine ) LS 15.00 45.00 675.00

Total `: 20283.00Add for small Tools and Plants @ 1% `: 202.83Add for Contractor's Profit on DPOL / Energy @ 10% `: 1190.50Add for Contractor's Overheads @ 5% `: 1014.15

Total hire charges of Machinery : `: 22690.48

C. LABOUR: Sl No Unit Amount

in `.1 Crew for Drilling jumbo Hour 8.00 178.00 1424.00

Contd

8

Description

Description Quantity Ratein `.

Quantity Rate

in `.RatePerticulars Quantity

in `.


C. LABOUR ( Contd ) : Sl No Unit Amount

in `.Contd

2 Crew for Air compressor Hour 6.00 178.00 1068.003 Crew for Jack hammer Hour 24.00 334.00 8016.004 Crew for Convey mucker Hour 6.00 178.00 1068.005 Crew for Dumper Hour 6.00 214.00 1284.006 Crew for Pump Hour 6.00 82.00 492.007 Crew for ventilation fans Hour 1.00 28.00 28.008 Surveyor Day 0.50 736.00 368.009 Foreman Day 1.00 436.00 436.00

10 Fitter / Mechanic Day 2.00 436.00 872.0011 Blaster ( Licensed ) Day 1.00 436.00 436.0012 Helper blasting Day 2.00 421.00 842.0013 Hammerman Day 2.00 421.00 842.0014 Maistry 1 in each shift Day 3.00 436.00 1308.0015 Khalasi

for mucking shift 4 Nos Day 4.00 436.00 1744.0016 Heavy mazdoor

for mucking shift 4 Nos Day 4.00 411.00 1644.00for other 2 shifts 1 No each shift Day 2.00 411.00 822.00

17 Light mazdoorfor cleaning & miscellaneous Day 1.00 411.00 411.00

Total `: 23105.00Add for small Tools and Plants @ 1% `: 231.05Add for Contractor's Profit @ 10% `: 2310.50Add for hidden cost on Labour @ 15% `: 3465.75Add for additional hidden cost on labour @ 10% `: 2310.50Add for Contractor's Overheads @ 5% `: 1155.25

Total cost of Labour : `: 32578.05

ABSTRACT:A. Cost of Materials `: 11911.97B. Hire charges of Machinery `: 22690.48C. Cost of Labour `: 32578.05

TOTAL `: 67180.50Add for Air and Water line @ 0.90% `: 604.62Add for Ventilation @ 5.60% `: 3762.11Add for Lighting @ 1.90% `: 1276.43Add for Ele sub-station / Demand charges @ 4.60% `: 3090.30Add for other Enabling works @ 1.50% `: 1007.71 Total cost for 38.60 cum `: 76921.67

Rate per cum `: 1992.79Rate approved per cum `: 1993.00


ITEM: Excavation for vertical / inclined shaft in all types of soft / hard rock including cost of allmaterials, machinery, labour, ventilation, lighting, drainage, shoring, strutting, scaling excavated

Descriptionin `.

Quantity Rate

9


surface, removing and hauling excavated muck outside shaft upto specified dump area andall other ancillary operations etc., complete with lead upto 1 km and all lifts.

DATA:Size of shaft assumed : 5.00 m dia Shape of shaft assumed for excavation : CircularDepth of shaft assumed : 75.00 m Pay-line margin assumed : 0.20 mDiameter of shaft upto pay line for excavation : 5.40 mDistance of dump yard from face : within 500 mAverage lift assumed for excavation of shaft upto tunnel level : 40 m

1. Checking alignment and marking hole locations :Use of winch & cradle during marking hole locations : 1 hour

2. Drilling holes :Area of excavation upto payline ( 0.7857 x 5.4 x 5.4 ) : 22.91 sqmDepth of drilling : 1.50 mDepth of pull : 1.30 mNo.of peripheral holes @ 0.65 m spacing ( 20 times dia ) : 24 Nos.No. of holes in shaft area @ 2 per sqm ( 0.7857 x 5 x 5 x 2 ) : 40 Nos.Depth of drilling for 64 holes ( 64 x 1.5 ) : 96 mExtra drilling considered at 5 percent for secondary blasting of large fragments.Total depth of drilling ( 96 x 1.05 ) say : 101 mAverage rate of drilling per hour per jack hammer : 5 mTime for 4 jack hammers for drilling. ( 101 / 4 / 5 ) say : 5 hoursTime for 1 air compressor 15 cmm for air supply to 4 jack hammers : : 5 hoursTime for 10 hp pump for pumping water to storage tank. : 5 hoursTime for 20 hp sludge pump for removing drill water from pit : 2 hoursTotal time for drilling including preparation for drilling : 5 hours

3. Loading explosive and blasting :Quantity of in-situ excavation per blast ( 22.91 x 1.30 ) : 30 cumQuantity of explosive small dia per blast @ 1.0 kg per cum : 30 kgQuantity of explosive for secondary blasting @ 5 % : 2 kgQuantity of electric detonators for blasting : 69 Nos.Detonating fuse coil : 120 RmUse of winch & cradle during loading of explosives : 1 hour

4. Defuming shaft: Generally for shafts defuming is carried out by leaving compressed air by air hose for about0.5 hour to remove blasting gases and dust. Use air compressor for 0.5 hour.

5. Mucking excavated rock :Winch and 0.5 cum bottom / side opening bucket are considered for removing the muck from shaft and rail mounted tipping tubs are considered for further haulage and disposal.Quantity of muck to be removed per blast considering 40 % bulkage : 42 cumDeploy 8 heavy mazdoors for mucking in the shaft. Consider out-put of each mazdoor at 3 cum / day for working on rocky surface.Time for loading 0.5 cum bucket ( 0.5 x 8 x 60 / 3 / 8 ) : 10 minCycle time for operating mucking bucket by winch :Lowering bucket by winch @ 15 m / minute for av. 40 m : 3.00 minLoading muck by work force : 10.00 minLifting by winch @ 15 m / minute for av. 40 m : 3.00 minUnloading to tipping tub : 1.50 mun

10


Over all cycle time for mucking 0.5 cum by deploying 2 buckets say : 10.00 minQuantity of muck per mucking bucket : 0.50 cumTime required for mucking 42 cum ( 42 x 10 / 0.50 / 60 ) : 14 hoursConsidering time for shift change etc., total time required for mucking : 16 hoursConsidering use of winch during marking / drilling / blasting / time for shift change / etc., deploywinch for 24 hours with fuel / energy charges for 16 hours.Use 2 mucking buckets for 16 hours for removing muck from shaft.Use 1 tipping tub for 16 hours for disposal of muck outside shaft.

6. Overall cycle time :Marking hole locations and preparation for drilling : 0.50 hoursDrilling holes : 5.00 hoursLoading explosive and blasting : 2.00 hoursDefuming by leaving compressed air : 0.50 hoursMucking excavated rock : 16.00 hoursTotal cycle of excavation per blast of 1.3 m depth : 24.00 hours

7. Requirement of materials :Explosive small dia ( 30 + 2 ) : 32 kgElectric detonators for main / secondary blasting ( 24 + 40 + 5 ) : 69 NosFuse coil : 120 Rm

8. Requirement of machinery :Deploy winch for various operations : 24 hours( marking holes 1 hr + drilling 5 hrs + loading explosives 1 hr + mucking 16 hrs + misc 1 hr)Deploy air compressor 15 cmm for air supply to 4 jack hammers : 5.5 hours( drilling 5 hrs + defuming 0.5 hr )Deploy 4 jack hammers for drilling. : 5 hoursDeploy 10 hp pump for water supply to drilling work. : 5 hoursDeploy 20 hp sludge pump for removing drill water : 2 hoursDeploy 1 tipping tub for conveying muck : 16 hours

9. Requirement of workforce ( other than machinery crew ) :Surveyorfor checking alignment and marking hole locations for drilling : 0.5 No.Foreman for supervising winch and other operations ( 1 in each shift ) : 3 Nos.Fitter / Mechanicfor arranging air / water lines / sludge pump etc. : 2 Nos.Blaster ( Licensed ) : 1 No.Helper blasting : 2 Nos.Hammerman for scaling / breaking large stones ( 4 in 2 mucking shifts ) : 4 Nos.Maistry ( 1 in each shift ) : 3 Nos.Khalasi ( 8 in 2 mucking shifts ) : 8 Nos.Heavy mazdoorfor mucking shift ( 8 in each shift for 2 shifts ) : 16 Nos.for other 1 shift ( 2 Nos ) : 2 Nos.Light mazdoorfor cleaning & miscellaneous : 2 Nos.

10. Use rate of materials:Cost of drill rod 1.5 m long @ `: 4054.00 / No. `: 4054.00Life of drill rod with reconditioning : 150 mUse rate of drill rod per Rm drilling ( cost / life ) `: 27.03Length of air and water hose assumed : 100 m each

11


Cost of 25 mm dia air hose 100 m @ `: 204.00 / Rm `: 20400.00Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 25.50Cost of water hose 100 m each @ `: 188.00 / Rm `: 18800.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 23.5Quantity of rails for haulage of tubs Haulage track outside : 2 x 150 mWeigth of 30R rails 300 m length @ 30 kg / Rm : 9 tonnesCost of 30 R rails 300 m @ `: 47458.00 / tonne `: 427122.00Add for fixtures @ 25% `: 106780.50

Total `: 533902.50Less salvage value @ 10% ( - ) `: -53390.25

Total `: 480512.25Life of rails under tunnel working conditions : 15 yearsUse rate of rails per year ( cost / life ) `: 32034.15Add for repairs & replacement @ 10% `: 3203.42

Total `: 35237.57Use rate of rails per shift considering 300 working days `: 117.46Consider use of rail track for 24 hours.Length of 16 mm dia wire rope for winch assuming 80 m deep shaft : 150 mCost of wire rope 150 m ( 160 kg ) @ `: 163.00 / kg `: 26080.00Life of wire rope for lifting : 2500 hoursUse rate of wire rope per hour ( cost / life ) `: 10.43Weight of mucking bucket : 250 kgCost of steel plates @ 75 % @ `: 39.55 / kg `: 7415.06Cost of steel angles @ 25 % @ `: 39.55 / kg `: 2471.69Cost of fabrication @ `: 18.00 / kg `: 4500.00

Total `: 14386.75Add for hooks / door arrangements etc @ 25% `: 3596.69

Total `: 17983.44Less salvage value @ 10% ( - ) `: -1798.34Add for repairs / maintenance etc @ 10% `: 1798.34

Total `: 17983.44Life of mucking bucket assumed : 2500 hoursUse rate of mucking bucket per hour ( cost / life ) `: 7.19


in `.1 Small dia explosive kg 32.00 52.00 1664.002 Electric detonator Nos 69.00 6.00 414.003 Detonating fuse coil Rm 120.00 6.00 720.004 Use rate of drill rod 1.5 m long Rm 101.00 27.03 2729.69

Reconditioning charges @ 10% 272.975 Use rate of air hose ( 4 x 5 + 0.5 ) Hour 22.00 25.50 561.006 Use rate of water hose ( 4 x 5 ) Hour 20.00 23.50 470.007 Use rate of rail track Shift 2.00 117.46 234.928 Use rate of wire rope Hour 24.00 10.43 250.37

Contd

Perticulars Quantity Rate

12

in `.


A. MATERIALS ( Contd ) : Sl No Unit Amount

in `.Contd

9 Use rate of mucking bucket ( 2 x 16 ) Hour 32.00 7.19 230.1910 Sundries ( paint / template etc ) LS 9.00 45.00 405.00




in `.1 Air compressor 15 cmm ( ele ) Hour 5.50 71.00 390.50


Fuel / Energy charges Hour 20.00 7.00 140.003 Pump 10 hp ( ele ) Hour 5.00 3.00 15.00

Fuel / Energy charges Hour 5.00 74.00 370.004 Sludge pump 20 hp electric Hour 2.00 7.00 14.00

Fuel / Energy charges Hour 2.00 148.00 296.005 Winch 35 hp electric Hour 24.00 67.00 1608.00

Fuel / Energy charges Hour 16.00 258.00 4128.006 Tipping tub 1.5 cum Hour 16.00 21.00 336.00

Fuel / Energy charges Hour 16.00 12.00 192.007 Sundries ( explosive van / magazine ) LS 10.00 45.00 450.00




in `.1 Crew for Air compressor Hour 5.50 178.00 979.002 Crew for Jack hammer Hour 20.00 334.00 6680.003 Crew for Pump 10 hp Hour 5.00 82.00 410.004 Crew for Sludge pump 20 hp Hour 2.00 82.00 164.005 Crew for Winch Hour 24.00 267.00 6408.006 Surveyor Day 0.50 736.00 368.007 Foreman Day 3.00 436.00 1308.008 Fitter / Mechanic Day 2.00 436.00 872.009 Blaster ( Licensed ) Day 1.00 436.00 436.00

10 Helper blasting Day 2.00 421.00 842.0011 Hammerman 2 Nos each for 2 shifts Day 4.00 421.00 1684.0012 Maistry 1 in each shift Day 3.00 436.00 1308.00

Contd

Description

Description

Quantity

13

Quantity Rate

Rate

in `.

Ratein `.

in `.

Quantity

Perticulars



in `.Contd

13 Khalasifor mucking 4 Nos each for 2 shifts Day 8.00 436.00 3488.00

14 Heavy mazdoorfor mucking 8 Nos each for 2 shifts Day 16.00 411.00 6576.00for other 1 shift 2 Nos Day 2.00 411.00 822.00








ITEM: Excavation for tunnel by tunnelling methods in rock not requiring supports including cost of all materials,machinery, labour, ventilation, lighting, drainage, scaling excavated surface, removing under-cuts, removing and hauling excavated muck outside tunnel upto specifieddump area and all other ancillary operations etc., complete with lead upto 1 km and all lifts.

DATA:Size of tunnel assumed ( finished section ) : 4.50 m dia Shape of tunnel assumed for excavation : D - shapeHeight of tunnel assumed ( finished section ) : 4.50 m Length of tunnel assumed : 1000 mThickness of CC lining : 0.30 mPay-line margin assumed : 0.20 mDiameter of tunnel upto pay line for excavation : 5.50 mDistance of dump yard from face including approach / adit length : Average 1 kmHaulage of excavated muck : By dumpers

in `.

14

Description Quantity Rate


Pay line Concrete lining

Minimum excavation line

Excavated profile Finished tunnel line

TYPICAL CROSS SECTION OF TUNNEL 4.50 m dia.

1. Checking alignment and marking hole locations :Use of drilling jumbo for marking hole locations : 1 hour

2. Drilling holes :Area of tunnel upto pay-line( 0.5 x 0.786 x 5.5 x 5.5 )+( 5.5 x 2.75 ) : 27.00 sqmThe number of holes for tunnel excavation will be generally in the range of 2.5 to 3.0 per sqmof cross sectional area upto pay line for tunnel upto 45 sqm and in the range of 2.0 to 2.5 per sqm of cross sectional area upto pay line for tunnel exceeding 45 sqm.For rate analysis 2.5 holes per sqm of cross sectional area considered.Number of holes for full face excavation ( 27 x 2.5 ) : 68 NosDepth of holes : 2 mExtra drilling considered at 10 percent for inclination of holes and for removal of any under cutsand for secondary blasting of large fragments during mucking.Depth of drilling for 68 holes ( 68 x 2 x 1.10 ) : 150 mAverage rate of drilling per hour per jack hammer : 5 mTime for 4 jack hammers with pusher leg for drilling. ( 150 / 4 / 5 ) say : 7.5 hoursTime for 1 air compressor 15 cmm for air supply to 4 jack hammers : 7.5 hoursTime for drilling jumbo for drilling : 8 hoursTime for 10 hp pump for water supply to drilling work. : 7.5 hours

3. Loading explosive and blasting :Depth of pull per blast for 2 m deep holes : 1.80 mQuantity of in-situ excavation per blast ( 27.00 x 1.80 ) : 49 cumQuantity of explosive small dia per blast @ 1.00 kg per cum : 49 kgQuantity of explosive for under cuts secondary blasting @ 10 % : 5 kgQuantity of delay detonators per blast : 68 Nos.Quantity of electric detonators for secondary blasting ( LS ) : 10 Nos.Detonating fuse coil ( LS ) : 160 RmTime for drilling jumbo for loading explosives : 1.5 hour

4. Defuming and scaling loose materials: No machinery other than ventilation fans required. For defuming tunnel ventilation fans areinstalled in duct system at about 300 m interval and are run for about 1 hour after each blast.For 1 km length of tunnel ventilation fans are required at 4 places at 300 m interval. As the fansare installed progressively, for rate analysis consider average 2 fans for 1 hour.

5. Mucking excavated rock :Quantity of muck to be removed per blast considering 40 % bulkage : 69 cumCapacity of dumper per load : 5.00 cumQuantity of muck per load considered under tunnel working conditions : 4.50 cum

15


Loading cycle time:Moving from turning pocket position and spotting : 1 minutesLoading muck by convey mucker and work force : 20 minutesTime for loaded dumper to pass waiting point say : 1 minutesCycle time of loading dumper per load of 4.50 cum : 22 minutesHaulage cycle time:Running time from loading point to dump yard at av. 10 km / hr : 6 minutesTurning and unloading : 2 minutesReturn trip to waiting point @ av. 15 km / hr : 4 minutesWaiting time before spotting : 9 minutesCycle time for haulage per load of 4.5 cum : 21 minutesRound trip cycle time of dumper ( 22 + 21 ) say : 45 minutesQuantity of muck disposal per hour / dumper : 6.00 cumDeploy 2 dumpers for conveying muck @ 12 cum per hour say : 6 hoursDeploy convey mucker and labour force for loading : 6 hours

6. Overall cycle time :Checking alignment and marking hole locations : 2.00 hoursDrilling holes : 7.50 hoursLoading explosive and blasting : 2.00 hoursDefuming and scaling loose rock fragments : 2.00 hoursMucking excavated rock : 6.00 hoursBed cleaning, support fixing, rock bolting, lighting etc say : 4.50 hoursTotal cycle of excavation per blast of 1.8 m length : 24.00 hours

7. Requirement of materials :Explosive small dia ( 49 + 5 ) : 32 kgElectric short delay detonators ( 68 x 1 ) : 68 NosElectric detonators for secondary blasting ( 10 x 1 ) : 10 NosFuse coil : 160 Rm

8. Requirement of machinery :Deploy drilling jumbo for various operations 11 hours ( marking holes 1 hr + drilling 7.5 hrs + loading explosives 1.5 hrs + misc 1 hr )Deploy air compressor 15 cmm for air supply to 4 jack hammers : 7.5 hoursDeploy 4 jack hammers with pusher leg for drilling. : 7.5 hoursDeploy 10 hp pump for water supply to drilling work. : 7.5 hoursDeploy 20 hp ventilation fan for defuming : 2 hoursDeploy convey mucker for loading excavated rock : 6 hoursDeploy 2 dumper for conveying muck : 6 hours

9. Requirement of workforce ( other than machinery crew ) :Surveyorfor checking alignment and marking hole locations for drilling : 1 No.Foreman for supervising drilling of holes and other operations : 1 No.Fitter / Mechanicfor extending air / water lines : 2 Nos.Blaster ( Licensed ) : 1 No.Helper blasting : 2 Nos.Hammerman for scaling : 2 Nos.Maistry 1 in each shift : 3 Nos.Khalasi for mucking shift : 4 Nos.

16


Heavy mazdoor :for mucking shift : 8 Nos.for other 2 shifts 2 No each shift : 4 Nos.Light mazdoor :for cleaning & miscellaneous : 2 Nos.

10. Use rate of materials:Cost of drill rod 2.5 m long @ `: 6723.00 / No. `: 6723.00Life of drill rod with reconditioning : 150 mUse rate of drill rod per Rm drilling ( cost / life ) `: 44.82Length of air and water hose assumed : 25 m eachCost of 25 mm dia air hose 25 m @ `: 204.00 / Rm `: 5100.00Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 6.38Cost of water hose 25 m each @ `: 188.00 / Rm `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88



Reconditioning charges @ 10% 672.306 Use rate of air hose Hour 30.00 6.38 191.257 Use rate of water hose Hour 30.00 5.88 176.258 Sundries ( paint / template etc ) LS 6.00 45.00 270.00






Fuel / Energy charges Hour 7.50 922.00 6915.003 Jack hammer ( 4 x 7.5 hrs ) Hour 30.00 10.00 300.00



Fuel / Energy charges Hour 6.00 257.00 1542.00Contd

Perticulars

Description

Rate

Quantityin `.

17

Rate

Quantityin `.


B. MACHINERY ( Contd ) : Sl No Unit Amount

in `.Contd

6 Dumper ( 2 x 6 hrs ) Hour 12.00 394.00 4728.00Fuel / Energy charges Hour 12.00 478.00 5736.00

7 Pump 10 hp ( ele ) Hour 7.50 3.00 22.50Fuel / Energy charges Hour 7.50 74.00 555.00

8 Ventilation fans 20 hp ( 2 x 1 ) Hour 2.00 4.00 8.00Fuel / Energy charges Hour 2.00 148.00 296.00

9 Sundries ( explosive van / magazine ) LS 8.00 45.00 360.00Total `: 28097.00

Add for small Tools and Plants @ 1% `: 280.97Add for Contractor's Profit on DPOL / Energy @ 10% `: 1632.50Add for Contractor's Overheads @ 5% `: 1404.85



in `.1 Crew for Drilling jumbo Hour 11.00 178.00 1958.002 Crew for Air compressor Hour 7.50 178.00 1335.003 Crew for Jack hammer Hour 30.00 334.00 10020.004 Crew for Convey mucker Hour 6.00 178.00 1068.005 Crew for Dumper Hour 12.00 214.00 2568.006 Crew for Pump Hour 7.50 82.00 615.007 Crew for ventilation fans Hour 2.00 28.00 56.008 Surveyor Day 1.00 736.00 736.009 Foreman Day 1.00 436.00 436.00

10 Fitter / Mechanic Day 2.00 436.00 872.0011 Blaster ( Licensed ) Day 1.00 436.00 436.0012 Helper blasting Day 2.00 421.00 842.0013 Hammerman Day 2.00 421.00 842.0014 Maistry 1 in each shift Day 3.00 436.00 1308.0015 Khalasi






QuantityDescription

in `.Rate

18

Description Quantity

in `.Rate





Note: Where mucking is to be carried out through vertical / inclined shaft using winch and mucking tub arrangement increase the basic rate per cum by 8 .00 percent.


ITEM: Excavation for tunnel by tunnelling methods including excavation for supports in all types ofsoil / rock strata requiring supports ( excluding cost of providing supports ) including cost ofall other materials, machinery, labour, ventilation, lighting, drainage, scaling excavated surface, removing and hauling excavated muck outside tunnel upto specified dump area and all otherancillary operations etc., complete with lead upto 1 km and all lifts.

DATA:Size of tunnel assumed ( finished section ) : 4.50 m dia Shape of tunnel assumed for excavation : D - shapeHeight of tunnel assumed ( finished section ) : 4.50 m Length of tunnel assumed : 1000 mThickness of CC lining : 0.30 mExtra excavation for supports : 0.25 mPay-line margin assumed : 0.20 mDiameter of tunnel upto pay line for excavation : 6.00 mDistance of dump yard from face including approach / adit length : Average 1 kmHaulage of excavated muck : By dumpers

1. Checking alignment and marking hole locations :Use drilling jumbo for 1 hour for marking hole locations.

2. Drilling holes :Area of tunnel upto pay-line (0.5x0.7857x6x6) + (6x2.75) : 30.64 sqmThe number of holes for tunnel excavation will be generally in the range of 2.5 to 3.0 per sqm of cross sectional area upto pay line for tunnel upto 45 sqm and in the range of 2.0 to 2.5 persqn of cross sectional area upto pay line for tunnel exceeding 45 sqm.For rate analysis 2.5 holes per sqm of cross sectional area considered.Number of holes for full face excavation ( 30.64 x 2.5 ) : 77 NosAssuming spacing of supports at 0.75 m the depth of pull is considered at 1.5 m.Depth of holes for 1.5 m pull : 1.7 mExtra drilling considered at 10 percent for inclination of holes and for removal of any under cutsand for secondary blasting of large fragments during mucking.Depth of drilling for 77 holes ( 77 x 1.7 x 1.10 ) : 144 mAverage rate of drilling per hour per jack hammer : 5 m

19


Time for 4 jack hammers with pusher leg for drilling. : 7 hoursTime for 1 air compressor 15 cmm for air supply to 4 jack hammers : : 7 hoursTime for drilling jumbo for drilling : 7 hoursTime for 10 hp pump for pumping water to storage tank. : 7 hours

3. Loading explosive and blasting :Depth of pull per blast for 1.7 m deep holes : 1.50 mQuantity of in-situ excavation per blast ( 30.64 x 1.50 ) : 46 cumQuantity of explosive small dia per blast @ 0.8 kg per cum : 37 kgQuantity of explosive for secondary blasting @ 10 % : 4 kgQuantity of delay detonators per blast : 77 Nos.Quantity of electric detonators for secondary blasting ( LS ) : 10 Nos.Detonating fuse coil : 175 RmUse drilling jumbo for 2 hour for loading explosives.

4. Defuming and scaling loose materials No machinery other than ventilation fans required. For defuming tunnel ventilation fans areinstalled in duct system at about 300 m interval and are run for about 1 hour after each blast.For 1 km length of tunnel ventilation fans are required at 4 places at 300 m interval. As the fansare installed progressively, for rate analysis consider average 2 fans for 1 hour.

5. Mucking excavated rock :Quantity of muck per blast considering 40 % bulkage ( 46 x 1.4 ) : 65 cumCapacity of dumper per load : 5 cumQuantity of muck per load considered under tunnel working conditions : 4.5 cumLoading cycle time:Moving from pocket position and spotting : 1 minutesLoading muck by convey mucker and work force : 20 minutesTime for loaded dumper to pass waiting point say : 1 minutesCycle time of loading dumper per load of 4.5 cum : 22 minutesHaulage cycle time:Running time from loading point to dump yard at av. 10 km / hr : : 6 minutesTurning and unloading : 2 minutesReturn trip to waiting point @ av. 15 km / hr : 4 minutesWaiting time before spotting : 9 minutesCycle time for haulage per load of 4.5 cum Total : 21 minutesRound trip cycle time of dumper say : 45 minutesQuantity of muck disposal per hour / dumper : 6 cumTime for 2 dumpers for conveying muck @ 12 cum per hour say : 6 hoursTime for convey mucker and labour force for loading say : 6 hours

6. Overall cycle time :Checking alignment and marking hole locations : 2.00 hoursDrilling holes : 7.00 hoursLoading explosive and blasting : 2.00 hoursDefuming and scaling loose rock fragments : 2.00 hoursMucking excavated rock : 6.00 hoursBed cleaning, Jumbo movements, rock bolting, lighting etc say : 4.00 hoursErection of temperary / permanent supports : 9.00 hoursTotal cycle of excavation & supporting / blast of 1.5 m length : 32.00 hours

7. Requirement of materials :Explosive small dia ( 37 + 4 ) : 41 kgElectric short delay detonators ( 77 x 1 ) : 77 NosElectric detonators for secondary blasting ( 1 x 5 ) : 10 Nos

20


Fuse coil : 175 Rm8. Requirement of machinery :

Deploy drilling jumbo for various operations 11 hours ( marking holes 1 hr + drilling 7 hrs + loading explosives 2 hr + misc 1 hr )Deploy air compressor 15 cmm for air supply to 4 jack hammers : 7 hoursDeploy 4 jack hammers with pusher leg for drilling. : 7 hoursDeploy 10 hp pump for water supply to drilling work. : 7 hoursDeploy 20 hp ventilation fan for defuming ( 2 x 1 ) : 1 hourDeploy convey mucker for loading excavated rock : 6 hoursDeploy 2 dumper for conveying muck : 6 hours

9. Requirement of workforce ( other than machinery crew ) :Surveyorfor checking alignment and marking hole locations for drilling : 1 No.Foreman for supervising drilling of holes and other operations : 1 No.Fitter / Mechanicfor extending air / water lines : 2 Nos.Blaster ( Licensed ) : 1 No.Helper blasting : 2 Nos.Hammerman for scaling : 2 Nos.Maistry 1 in each shift : 3 Nos.Khalasi for mucking shift : 4 Nos.Heavy mazdoorfor mucking shift : 8 Nos.for other 2 shifts 1 No each shift : 4 Nos.Light mazdoorfor cleaning & miscellaneous : 3 Nos.

10. Use rate of materials:Cost of drill rod 2.5 m long @ `: 6723.00 / No. `: 6723.00Life of drill rod with reconditioning : 150 mUse rate of drill rod per Rm drilling ( cost / life ) `: 44.82Length of air and water hose assumed : 25 m eachCost of 25 mm dia air hose 25 m @ `: 204.00 / Rm `: 5100.00Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 6.38Cost of water hose 25 m each @ `: 188.00 / Rm `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88



Reconditioning charges @ 10% 645.416 Use rate of air hose Hour 28.00 6.38 178.50

Contd

Perticularsin `.

21

Quantity Rate



in `.Contd

7 Use rate of water hose Hour 28.00 5.88 164.508 Sundries( paint / template etc ) LS 14.00 45.00 630.00











Fuel / Energy charges Hour 7.00 74.00 518.008 Ventilation fans 20 hp ( 2 x 1 hr ) Hour 2.00 4.00 8.00

Fuel / Energy charges Hour 2.00 148.00 296.009 Sundries(explosive van / magazine ) LS 14.00 45.00 630.00




in `.1 Crew for Drilling jumbo Hour 11.00 178.00 1958.002 Crew for Air compressor Hour 7.00 178.00 1246.003 Crew for Jack hammer Hour 28.00 334.00 9352.004 Crew for Convey mucker Hour 6.00 178.00 1068.005 Crew for Dumper Hour 12.00 214.00 2568.006 Crew for Pump Hour 7.00 82.00 574.007 Crew for ventilation fans Hour 2.00 28.00 56.008 Surveyor Day 1.00 736.00 736.00

Contd

Quantity Rate

22

Descriptionin `.

Perticulars Quantity Ratein `.

in `.Description

Quantity Rate



in `.Contd

9 Foreman Day 1.00 436.00 436.0010 Fitter / Mechanic Day 2.00 436.00 872.0011 Blaster ( Licensed ) Day 1.00 436.00 436.0012 Helper blasting Day 2.00 421.00 842.0013 Hammerman 2 Nos Day 2.00 421.00 842.0014 Maistry 1 in each shift Day 3.00 436.00 1308.0015 Khalasi









Note: Where mucking is to be carried out through vertical / inclined shaft using winch and mucking tub arrangement increase the basic rate per cum by 8 .00 percent.


ITEM: Excavation for tunnel by heading and benching method of tunnelling including excavation for supports in all types of soil / rock strata requiring supports ( excluding cost of providing supports ) for roof before benching including cost of all other materials, machinery, labour,ventilation, lighting, drainage, scaling excavated surface, removing and hauling excavated muck outside tunnel upto specified dump area and all other ancillary operations etc., complete with lead upto 1 km and all lifts.

23



DATA:Size of tunnel assumed ( finished section ) : 4.50 m dia Shape of tunnel assumed for excavation : D - shapeHeight of tunnel assumed ( finished section ) : 4.50 m Length of tunnel assumed : 1000 mThickness of CC lining : 0.30 mExtra excavation for supports : 0.25 mPay-line margin assumed : 0.20 mDiameter of tunnel upto pay line for excavation : 6.00 mDistance of dump yard from face including approach / adit length : Average 1 kmHaulage of excavated muck : By dumpers

1. Checking alignment and marking hole locations :Use drilling jumbo for 1 hour for marking hole locations.

2. Drilling holes :

Pay lineHeading portion

Excavated profileMinimum Drill holes Benching portionexcavationline

TYPICAL CROSS SECTION OF TUNNEL FOR HEADING & BENCHING

In case of tunnel, where the height is more or where the chances of over excavation due to fullface blasting is more, the excavation will be generally carried out by heading and benchingmethod. For week strata arch rib supports are also to be erected before benching.Excavation of arch portion is carried out first and the supports are fixed wherever necessary.Depth of hole and explosive charge per cum are also controlled to minimise over excavation.Assuming spacing of arch supports at 0.75 m interval the effective depth of pull per blast isconsidered at 1.5 m. The depth of hole for 1.5 m pull is considered at 1.7 m.Extra drilling considered at 10 percent for inclination of holes and for removal of any undercuts and for secondary blasting of large fragments during mucking.

Heading portion :Area of excavation upto payline : 14.14 sqmDepth of drilling : 1.70 mNo. of holes considering 2.5 holes / sqm : 35 Nos.Depth of drilling for 35 holes ( 35 x 1.7 x 1.1 ) : 65.5 m

Haunch portion on either side :Area of excavation upto payline : 2.60 sqmDepth of drilling : 1.70 mNo. of holes considering 3 holes / sqm : 8 NosDepth of drilling for 8 holes ( 8 x 1.7 x 1.1 ) : 15 m

24


Benching portion :Area of excavation upto payline ( 6 x 2.75 ) : 16.50 sqmNo. of holes considering 2.5 holes / sqm : 41 Nos.Depth of drilling : 1.70 mDepth of drilling for 41 holes ( 41 x 1.7 x 1.1 ) : 76.5 mTotal depth of drilling ( 65.5 + 15 + 76.5 ) : 157 mAverage rate of drilling per hour per jack hammer : 5 mTime for 4 jack hammers with pusher leg for drilling. : 8 hoursTime for 1 air compressor 15 cmm for air supply to 4 jack hammers : : 8 hoursTime for drilling jumbo for drilling : 8 hoursTime for 10 hp pump for pumping water to storage tank. : 8 hours

3. Loading explosive and blasting :Total area of excavation : 33.24 sqmDepth of pull per blast for 1.7 m deep holes : 1.50 mQuantity of in-situ excavation per blast ( 33.24 x 1.50 ) : 50 cumQuantity of explosive small dia / blast @ 0.8 kg / cum ( 50 x 0.8 ) : 40 kgQuantity of explosive for secondary blasting @ 10 % : 4 kgQuantity of delay detonators per blast ( 35 + 8 + 41 ) : 84 Nos.Quantity of electric detonators for secondary blasting ( LS ) : 10 Nos.Detonating fuse coil : 175 RmTime for drilling jumbo for loading explosives. ( 1 + 0.5 + 0.5 ) : 2 hours

4. Defuming and scaling loose materials No machinery other than ventilation fans required. For defuming tunnel ventilation fans areinstalled in duct system at about 300 m interval and are run for about 1 hour after each blast.For 1 km length of tunnel ventilation fans are required at 4 places at 300 m interval. As the fansare installed progressively, for rate analysis consider average 2 fans for 1 hour for 2 blasts.

5. Mucking excavated rock :Quantity of muck per blast considering 40 % bulkage for heading zone : 35 cumQuantity of muck per blast considering 40 % bulkage for benching zone : 35 cumCapacityof dumper per load : 5 cumQuantity of muck per load considered under tunnel working conditions : 4.5 cumLoading cycle time:Moving from pocket position and spotting : 1 minutesLoading muck by convey mucker and work force : 20 minutesTime for loaded dumper to pass waiting point say : 1 minutesCycle time of loading dumper per load of 4.5 cum : 22 minutesHaulage cycle time:Running time from loading point to dump yard at av. 10 km / hr : : 6 minutesTurning and unloading : 2 minutesReturn trip to waiting point @ av. 15 km / hr : 4 minutesWaiting time before spotting : 9 minutesCycle time for haulage per load of 4.5 cum : 21 minutesRound trip cycle time of dumper say : 45 minutesQuantity of muck disposal per hour / dumper : 6 cumTime for 2 dumpers for conveying muck @ 12 cum per hour say : 6.0 hoursAs some muck from heading portion needs to be pushed down 1 hour extra time assumed.Time for 2 dumpers for conveying muck @ 12 cum per hour say : 7 hoursTime for convey mucker and labour force for loading : 7 hours

25


6. Overall cycle time :Checking alignment and marking hole locations : 1.00 hoursDrilling holes : 8.00 hoursLoading explosive : 2.00 hoursBlasting / Defuming / Scaling loose rock fragments : 3.00 hoursMucking excavated rock : 7.00 hoursBed cleaning, Jumbo movements, rock bolting, lighting etc say : 5.00 hoursErection of permanent supports : 6.00 hoursTotal cycle of excavation & supporting / blast of 1.5 m length : 32.00 hours

7. Requirement of materials :Explosive small dia ( 40 + 4 ) : 44 kgElectric short delay detonators ( 35 + 8 + 41 ) : 84 NosElectric detonators for secondary blasting ( 1 x 10 ) : 10 NosFuse coil : 175 Rm

8. Requirement of machinery :Deploy drilling jumbo for various operations of excavation 12 hours( marking 1 hr + drilling 8 hrs + loading explosive 2 hrs + misc 1 hr )Deploy air compressor 15 cmm for air supply to 4 jack hammers : 8 hoursDeploy 4 jack hammers with pusher leg for drilling. : 8 hoursDeploy 10 hp pump for water supply to drilling work. : 8 hoursDeploy 20 hp ventilation fan for defuming : 2 hourDeploy convey mucker for loading excavated rock : 7 hoursDeploy 2 dumpers for conveying muck : 7 hours

9. Requirement of workforce ( other than machinery crew ) :Surveyorfor checking alignment and marking hole locations for drilling : 1 No.Foreman for supervising drilling of holes and other operations : 1 No.Fitter / Mechanicfor extending air / water lines : 2 Nos.Blaster ( Licensed ) : 2 Nos.Helper blasting : 4 Nos.Hammerman for scaling : 2 Nos.Maistry 1 in each shift : 3 Nos.Khalasifor pushing muck from header portion : 4 Nos.for mucking shift : 4 Nos.Heavy mazdoorfor mucking shift : 8 Nos.for other 2 shifts 2 No each shift : 4 Nos.Light mazdoorfor cleaning & miscellaneous : 3 Nos.

10. Use rate of materials:Cost of drill rod 2.5 m long @ `: 6723.00 / No. `: 6723.00Life of drill rod with reconditioning : 150 mUse rate of drill rod per Rm drilling ( cost / life ) `: 44.82Length of air and water hose assumed : 25 m eachCost of 25 mm dia air hose 25 m @ `: 204.00 / Rm `: 5100.00

26


Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 6.38Cost of water hose 25 m each @ `: 188.00 / Rm `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88


in `.1 Small dia explosive kg 44.00 52.00 2288.002 Delay detonators Nos 84.00 12.00 1008.003 Electric detonator Nos 10.00 6.00 60.004 Detonating fuse coil Rm 175.00 6.00 1050.005 Use rate of drill rod 2.5 m long Rm 157.00 44.82 7036.74

Reconditioning charges @ 10% 703.676 Use rate of air hose Hour 32.00 6.38 204.007 Use rate of water hose Hour 32.00 5.88 188.008 Sundries ( paint / template etc ) LS 9.00 45.00 405.00









Fuel / Energy charges Hour 7.00 257.00 1799.006 Dumper ( 2 x 6.5 hrs ) Hour 14.00 394.00 5516.00


Fuel / Energy charges Hour 8.00 74.00 592.008 Ventilation fans 20 hp ( 2 x 1 hr x 2 ) Hour 4.00 4.00 16.00

Fuel / Energy charges Hour 4.00 148.00 592.009 Sundries (explosive van / magazine ) LS 10.00 45.00 450.00



27

in `.Quantity

in `. Quantity Rate

Perticulars

Description

Rate



in `.1 Crew for Drilling jumbo Hour 12.00 178.00 2136.002 Crew for Air compressor Hour 8.00 178.00 1424.003 Crew for Jack hammer Hour 32.00 334.00 10688.004 Crew for Convey mucker Hour 7.00 178.00 1246.005 Crew for Dumper Hour 14.00 214.00 2996.006 Crew for Pump Hour 8.00 82.00 656.007 Crew for Ventilation fan Hour 4.00 28.00 112.008 Surveyor Day 1.00 736.00 736.009 Foreman Day 1.00 436.00 436.00

10 Fitter / Mechanic Day 2.00 436.00 872.0011 Blaster ( Licensed ) Day 2.00 436.00 872.0012 Helper blasting Day 4.00 421.00 1684.0013 Hammerman 2 Nos Day 2.00 421.00 842.0014 Maistry 1 in each shift Day 3.00 436.00 1308.0015 Khalasi

for pushing muck in heading portion Day 4.00 436.00 1744.00for mucking shift 4 Nos Day 4.00 436.00 1744.00

16 Heavy mazdoorfor mucking shift 8 Nos Day 8.00 411.00 3288.00for other 2 shifts 2 No each shift Day 4.00 411.00 1644.00







NOTE:Where mucking is to be carried out through vertical / inclined shaft using winch and mucking tub arrangement increase the basic rate per cum by 8 .00 percent.

28

Ratein `.




ITEM: Removing and hauling muck overfallen due to natural causes such as geological faults etc., out of tunnel including cost of all materials, machinery, labour, ventilation, drainage, lighting, breaking any large fragments by blasting if necessary with all other ancillary operations and disposing off the same in specified dump area or as directed etc., complete with lead upto 1 km and all lifts.

DATA:Length of tunnel assumed : 1000 mDistance of dump yard from face : 1 kmHaulage of excavated muck : By dumperConsider 100 cum overfallen muck for rate analysis.Quantity of overfallen muck requiring blasting assumed @ 20 % : 20 cumDepth of drilling @ 0.75 m per cum : 15 mRate of drilling for shallow holes in overfallen muck : 4 m / hourTime for 4 jack hammers for drilling 15 m : 1 hourTime for 15 cmm air compressor for supplying air to jack hammers : 1 hourDeploy convey mucker for loading @ 16 cum / hour : 6 hoursDeploy 5 cum dumpers 2 Nos @ 8 cum / hour each : 6 hours

1. Requirement of materials :Quantity of explosive @ 0.40 kg / cum ( 20 x 0.4 ) : 8 kgQuantity of electric detonators assuming 0.6 m holes ( 20 x 0.6 ) : 12 NosQuantity of detonating fuse coil : 20 Rm

2. Requirement of machinery :Deploy air compressor 15 cmm for air supply to 4 jack hammers : 1 hourDeploy 4 jack hammers with pusher leg for drilling. : 1 hourDeploy 10 hp pump for water supply to drilling work. : 1 hourDeploy 20 hp ventilation fan for defuming : 0.5 hourDeploy convey mucker for loading excavated rock : 6 hoursDeploy 2 dumper for conveying muck : 6 hours

3. Requirement of workforce ( other than machinery crew ) :Blaster ( Licensed ) : 0.5 No.Helper blasting : 0.5 No.Maistry : 1 No.Heavy mazdoor : 2 Nos.Light mazdoor : 2 Nos.

4. Use rate of materials:Cost of drill rod 1.5 m length @ `: 4054.00 / No. `: 4054.00Life of drill rod with reconditioning : 150 mUse rate of drill rod per Rm drilling ( cost / life ) `: 27.03Length of air and water hose assumed : 25 m eachCost of 25 mm dia air hose 25 m @ `: 204.00 / Rm `: 5100.00Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 6.38Cost of water hose 25 m each @ `: 188.00 / Rm `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88

29



in `.1 Use rate of drill rod 1.5 m long Rm 15.00 27.03 405.40

Reconditioning charges @ 10% 40.542 Explosive small dia. kg 8.00 52.00 416.003 Detonator ( ele ) Nos. 12.00 6.00 72.004 Detonating fuse coil Rm 20.00 6.00 120.005 Use rate of air hose Hour 4.00 6.38 25.506 Use rate of water hose Hour 4.00 5.88 23.507 Sundries LS 6.00 45.00 270.00





Fuel / Energy charges Hour 1.00 922.00 922.002 Jack hammer Hour 4.00 10.00 40.00


Fuel / Energy charges Hour 1.00 74.00 74.004 Ventilation fans 20 hp Hour 0.50 4.00 2.00


Fuel / Energy charges Hour 6.00 257.00 1542.006 Dumper 4.5 cum Hour 12.00 394.00 4728.00

Fuel / Energy charges Hour 12.00 478.00 5736.007 Sundries LS 6.00 45.00 270.00




in `.1 Crew for Air compressor Hour 1.00 178.00 178.002 Crew for Jack hammer Hour 4.00 334.00 1336.003 Crew for Pump Hour 1.00 82.00 82.004 Crew for Ventilation fan Hour 0.50 28.00 14.005 Crew for Convey mucker Hour 6.00 178.00 1068.006 Crew for Dumper Hour 12.00 214.00 2568.00

Contd

30

Quantity Rate

Ratein `.

in `.

Description

Quantity

Perticulars

Description

Ratein `.

Quantity



in `.Contd

7 Maistry Day 1.00 436.00 436.008 Blaster ( Licensed ) Day 0.50 436.00 218.009 Helper blasting Day 0.50 421.00 210.50

10 Heavy mazdoor Day 2.00 411.00 822.0011 Light mazdoor Day 2.00 411.00 822.00




TOTAL `: 30869.42Add for Air and Water line @ 0.90% `: 277.82Add for Ventilation @ 5.60% `: 1728.69Add for Lighting @ 1.90% `: 586.52Add for Ele sub-station / Demand charges @ 4.60% `: 1419.99Add for other enabling works @ 1.50% `: 463.04 Total cost for 100.00 cum `: 35345.48



ITEM: Dewatering tunnel by pumping out water collected by natural drainage inside tunnel includingcost of all materials, machinery, labour, ventilation, lighting, drainage, providing sump and all other ancillary operations wherever necessary etc., complete.

DATA:Consider 20 hp electric pump installed near junction of adit / channel with tunnel.Consider 250 m length of adit and 100 m length of approach cut.100 mm dia B Class G.I. Delivery pipe 400 m length.Daily average 8 hours pumping.Energy consumption per hour running of pump ( 20 x 0.746 ) : 14.92 kwhrMiscellaneous such as indicator lamps etc : 00.08 kwhr

Total / hour : 15.00 kwhr1. Requirement of materials :

No materials required.2. Requirement of machinery :

Deploy 20 hp electric dewatering pump for 1 hour.3. Requirement of workforce ( other than machinery crew ) :

Consider 1 pipe fitter for 4 hours daily and 1 heavy mazdoor for 8 hours daily for maintenance of

31

in `.Description Quantity Rate


pumping including cleaning sump etc.Pipe fitter for maintenance for 1 hour use of pump : 0.062 dayHeavy mazdoor for assisting pipe fitter : 0.125 day

4. Use rate of materials :Cost of 100 mm dia pipe 400 m @ `: 747.00 / Rm `: 298800.00Add for fixtures @ 15% `: 44820.00

Total `: 343620.00Less salvage value @ 10% `: -34362.00

Total `: 309258.00Life of G.I. pipe : 20000 hrsUse rate of delivery pipe per hour: ( cost / life ) `: 15.46Add for laying / dismantling pipe line @ 20% `: 3.09

Total `: 18.56

RATE ANALYSIS UNIT : 15.00 KwhrA. MATERIALS: Sl No Unit Amount

in `.1 Use rate of G.I.pipe 100 mm dia Hour 1.00 18.56 18.562 Suction pipe / foot valve etc @ 50% 9.283 Sundries LS 0.25 45.00 11.25




in `.1 Electric pump 20 hp Hour 1.00 7.00 7.002 Fuel / Energy charges Hour 1.00 148.00 148.003 Sundries ( Starter / Switches ete ) LS 0.25 45.00 11.25




in `.1 Crew charges for Pump Hour 1.00 82.00 82.002 Pipe fitter for maintenance Day 0.062 436.00 27.033 Heavy mazdoor for maintenance Day 0.125 411.00 51.38

Total `: 160.41Add for small Tools and Plants @ 1% `: 1.60Add for Contractor's Profit @ 10% `: 16.04

Contd

Perticulars

Description

Quantity

32

Description

in `.

RateQuantity

Rate

Quantity Rate

in `.

in `.



in `.Contd

Add for hidden cost on Labour @ 15% `: 24.06Add for additional hidden cost on labour @ 10% `: 16.04Add for Contractor's Overheads @ 5% `: 8.02



TOTAL `: 463.66Add for Air and Water line @ 0.90% `: 4.17Add for Ventilation @ 0.00% `: 0.00Add for Lighting @ 1.90% `: 8.81Add for Ele sub-station / Demand charges @ 4.60% `: 21.33Add for other Enabling works @ 1.50% `: 6.95 Total cost for 15.00 Kwhr `: 504.93

Rate per Kwhr `: 33.66Rate approved per kwhr `: 33.50


ITEM: Providing 25 mm thick guniting to sides and arch of tunnel in CM 1 : 3 proportion by weight including cost of all materials, machinery, labour, ventilation, lighting, drainageand all other ancillary operations etc., complete with lead upto 1 km and all lifts.

DATA:Thickness of guniting : 25 mmMortar mix proportion by weight : 1 : 3Water to cement ratio by weight : 0.35Unit weight of mortar 1 : 3 proportion by weight in kg / cum : 2300Cement per cum of mortar : 530 kgSand per cum of mortar : 0.96 cumDuring guniting a portion of the mortar mix is wasted due to rebounding of mainly sand particles. The extend of rebound varies from 20 to 25 percent. In view of very rich mix the extent of rebound is considered at 20 percent for analysis.For 25 mm thick guniting the rate of progress will be 4 to 5 sqm per hour.For analysis rate of progress is considered at 4.5 sqm per hour.For shift of 8 hours the progress will be 36 sqm.Quantity of mortar for 36 sqm with 20 % rebound ( 36x1.2x0.025 ) : 1.08 cumAdd for filling crevices / joints in exposed rock etc @ 5% : 0.05 cumTotal quantity of mortar for 36 sqm : 1.13 cumConsider 36 sqm guniting for rate analysis.

1. Requirement of materials :Cement with 1 % wastage for 36 sqm ( 1.13 x 530 x 1.01) : 605 kgSand with 2 % wastage for 36 sqm ( 1.13 x 0.96 x 1.02 ) : 1.10 cum

2. Requirement of machinery :Deploy Guniting equipment with accessories for 8 hours.

Description Rate Quantity

33

in `.


Deploy 8.5 cmm air compressor for 8 hours.Deploy Drilling jumbo for 3.5 hours during guniting of arch portion.Deploy 10 hp pump for 1 hour for pumping water to storage tank for mixing and curing.

3. Requirement of workforce ( other than machinery crew ) :Maistry : 1 No.Mason Cl-I : 1 No.Heavy mazdoor : 3 Nos.Light mazdoor : 2 Nos.

4. Re-handling lead for materials:As cement and sand are stored outside tunnel and are to be conveyed to the guniting location inside tunnel re-handling lead of 1 km is considered for cement and sand required for guniting.

5. Use rate of materials :Cost of grout hose 25 m @ `: 204.00 / m `: 5100.00Life of grout hose : 800 hoursUse rate of grout hose per hour ( cost / life ) `: 6.38Cost of water hose 25 m @ `: 188.00 / m `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88Cost of guniting nozzle @ `: 381.00 / m `: 381.00Life of guniting nozzle : 200 hoursUse rate of guniting nozzle per hour ( cost / life ) `: 1.91

RATE ANALYSIS UNIT : 36.00 sqmA. MATERIALS: Sl No Unit Amount

in `.1 Cement icluding wastage kg 605.00 5.56 3363.802 Sand ( screened ) cum 1.10 1000.00 1100.003 Use rate of grout hose 20 m Hour 8.00 6.38 51.004 Use rate of water hose 20 m Hour 8.00 5.88 47.005 Use rate of guniting nozzle Hour 8.00 1.91 15.246 Sundries LS 5.00 45.00 225.00

Total `: 4802.04Add for small Tools and Plants @ 1% `: 48.02Add for Contractor's Profit @ 10% `: 480.20Add for Contractor's Overheads @ 5% `: 240.10Add for royalty charges on sand @ ( Included in material rate ) `: 0.00



in `.1 Guniting equipment Hour 8.00 58.00 464.00

Fuel / Energy charges Hour 8.00 12.00 96.002 Air compressor 8.5 cmm ( ele ) Hour 8.00 73.00 584.00



34

Perticulars

Description

in `.Quantity Rate

Quantity Ratein `.



in `.Contd

4 Drilling jumbo Hour 3.50 275.00 962.50Fuel / Energy charges Hour 3.50 51.00 178.50

5 Sundries LS 5.00 45.00 225.00Total `: 5907.00




in `.1 Crew for Guniting equipment Hour 8.00 219.00 1752.002 Crew for Air compressor Hour 8.00 167.00 1336.003 Crew for pump Hour 1.00 82.00 82.004 Crew for Drilling jumbo Hour 3.50 178.00 623.005 Maistry Day 1.00 436.00 436.006 Mason Cl I Day 1.00 436.00 436.007 Heavy mazdoor Day 3.00 411.00 1233.008 Light mazdoor Day 2.00 411.00 822.00




TOTAL `: 21696.34Add for Air and Water line @ 0.90% `: 195.27Add for Ventilation @ 0.00% `: 0.00Add for Lighting @ 1.90% `: 412.23Add for Ele sub-station / Demand charges @ 4.60% `: 998.03Add for other enabling works @ 1.50% `: 325.45

Total `: 23627.31Add for 1 km rehandling lead charges :For cement 605 kg @ `: 358.20 / tonne `: 216.71For sand 1.10 cum @ `: 213.90 / cum `: 235.29 Total cost for 36.00 sqm `: 24079.31

Rate per sqm `: 668.87Rate approved per sqm `: 669.00

in `.

in `. Quantity

Rate

35

RateDescription




ITEM: Providing and fixing 25 mm dia. steel rock bolts with one end provided with mechanical /wedge type anchorage and other end provided with threads for fixing washers and nuts including cost of all materials, machinery,labour, ventilation, lighting, drainage, drilling 32 mmdia holes, providing 150 mm long 20 mm thick steel tapered wedge, providing 10 mm thick and 200 x 200 mm size plate washer and nuts, driving bolt, fixing washers and nuts, tighteningbolt by torque wrench and all other ancillary operations etc., complete with lead upto 1 kmand all lifts.

DATA:Diameter of ribbed steel rock bolt : 25 mmLength of rock bolt including threaded portion : 2.15 mPlate washers 200 x 200 x 10 mm thick : 2 Nos.Wedge 25 mm wide 20 mm thick at one end 150 mm long : 1 No.M S Nuts for bolts : 2 Nos.Diameter of hole for fixing rock bolt : 35 mmDepth of hole for fixing rock bolt : 2.00 mConside 10 bolts for analysis.Length of rock bolt excluding threaded portion for 10 bolts : 20.00 mConsider 20 m length of rock bolting for rate analysis.Quantity of drilling for 10 bolts : 20 mRate of drilling for rock bolts including shifting : 4 m / hrTime for drilling 20 m with 4 jack hammers ( 20 / 4 / 4 ) say : 1.5 hour

1. Requirement of materials :Quantity of 25 mm dia bars for 10 bolts with 2.5 % wastage

( 10 x 2.15 x 3.85 x 1.025 ) : 85 kgQuantity of washer for 10 bolts with 2.5 % wastage

( 10 x 2 x 0.2 x 0.2 x 78.5 x 1.025 ) : 64.5 kgQuantity of steel for wedge for 10 bolts with 2.5 % wastage

( 10 x 0.15 x 0.025 x 157 x 1.025 ) : 6 kgQuantity of nuts for 10 bolts ( 10 x 2 x 0.2 ) : 4 kg

2. Requirement of machinery :Deploy 1 Air compressor 15 cmm for 1.5 hours with 50 minutes per hour working.Deploy 4 Jack hammers / Stooper drills for 1.5 hours with 50 minutes per hour working.Deploy Drilling jumbo for 4 hours including fixing bolts.Deploy 10 hp pump for 1.5 hour for pumping water to storage tank.

3. Requirement of workforce ( other than machinery crew ) :Gas cutter for preparing washers and wedges : 0.5 No.Blacksmith for slitting rods and tapering wedges : 0.5 No.Turner for threading bolts : 1 No.Hammerman : 0.5 No.Fitter for fixing bolts : 0.5 No.Khalasis 2 Nos for 0.5 day : 1 No.Heavy mazdoor for assisting in cutting / fabrication / fixing : 2 Nos.

4. Re-handling lead for materials:As rock bolts are stored outside tunnel and are to be conveyed inside tunnel after fabrication at workshop re-handling lead of 1 km is considered.

36


5. Use rate of materials :Cost of drill rod 2.5 m long @ `: 6723.00 / No. `: 6723.00Life of drill rod with reconditioning : 150 mUse rate of drill rod per m drilling ( cost / life ) `: 44.82Cost of air hose 25 m / jack hammer @ `: 204.00 / Rm `: 5100.00Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 6.38Cost of water hose 25m/jack hammer `: 188.00 / Rm `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88

RATE ANALYSIS UNIT : 20.00 RmA. MATERIALS: Sl No Unit Amount

in `.1 Rein.Steel with 2.5 % wastage kg 85.00 49.03 4167.642 Steel plate for washers kg 64.50 39.55 2550.78

Steel plate for wedges kg 6.00 39.55 237.283 M S Nuts for bolts kg 4.00 90.00 360.004 Use rate of drill rod Rm 20.00 44.82 896.40

Reconditioning charges @ 10% 89.645 Use rate of air hose 4 Nos Hour 6.00 6.38 38.256 Use rate of water hose 4 Nos Hour 6.00 5.88 35.257 Sundries ( gas for cutting / heating etc ) LS 5.00 45.00 225.00








Fuel / Energy charges Hour 6.00 5.00 30.005 Drilling jumbo Hour 4.00 275.00 1100.00

Fuel / Energy charges Hour 4.00 51.00 204.006 Sundries ( lathe, blower etc ) LS 7.00 45.00 315.00



Description

Quantity Ratein `.

37

in `. Quantity Rate

Perticulars



in `.1 Crew for Air compressor Hour 1.50 178.00 267.002 Crew for pump Hour 1.50 82.00 123.003 Crew for Jack hammer Hour 6.00 334.00 2004.004 Crew for Drilling jumbo Hour 4.00 178.00 712.005 Fitter Day 0.50 436.00 218.006 Gas cutter Day 0.50 436.00 218.007 Turner Day 1.00 436.00 436.008 Blacksmith Day 0.50 436.00 218.009 Khalasi ( 2 x 0.5 ) Day 1.00 436.00 436.00

10 Hammerman Day 0.50 421.00 210.5011 Heavy mazdoor Day 2.00 411.00 822.00


Total cost of Labour : `: 7986.95ABSTRACT:A. Cost of Materials `: 9976.28B. Hire charges of Machinery `: 3797.66C. Cost of Labour `: 7986.95


Total `: 23697.60Add for 1 km rehandling lead charges :For steel 155 kg @ `: 358.20 / tonne `: 55.52 Total cost for 20.00 Rm `: 23753.12

Rate per Rm `: 1187.66Rate approved per Rm `: 1188.00


ITEM: Providing and fixing 25 mm diameter steel rock bolts with resin bond cement capsuleanchorage including cost of all materials, machinery, labour, ventilation, lighting, drainage, drilling 35 mm dia holes, threading one end of the bolt for fixing nuts, inserting grout capsule, driving bolt, fixing 10 mm thick 200 x 200 mm size plate washers and nuts, tightening the nuts by torque wrench after hardening of cement grout, and all other ancillary operations etc., complete with lead upto 1 km and all lifts.

DATA:Diameter of ribbed steel rock bolt : 25 mmLength of rock bolt including threaded portion : 2.15 mPlate washers 200 x 200 x 10 mm thick : 2 Nos.

Quantity

38

Ratein `.

Description


Resin bond cement grout capsule : 1 No.M S Nuts for bolts : 2 Nos.Diameter of hole for fixing rock bolt : 35 mmDepth of hole for fixing rock bolt : 2.00 mConside 10 bolts for analysis.Length of rock bolt excluding threaded portion for 10 bolts : 20.00 mConsider 20 m length of rock bolting for rate analysis.Quantity of drilling for 10 bolts : 20 mRate of drilling for rock bolts including shifting : 4 m / hrTime for drilling 20 m with 4 jack hammers ( 20 / 4 / 4 ) say : 1.5 hour

1. Requirement of materials :Quantity of 25 mm dia bars for 10 bolts with 2.5 % wastage

( 10 x 2.15 x 3.85 x 1.025 ) : 85 kgQuantity of washer for 10 bolts with 2.5 % wastage

( 10 x 2 x 0.2 x 0.2 x 78.5 x 1.025 ) : 64.5 kgQuantity of nuts for 10 bolts ( 10 x 2 x 0.2 ) : 4 kgQuantity of grout capsule for 10 bolts ( 10 x 1 ) : 10 Nos

2. Requirement of machinery :Deploy 1 Air compressor 15 cmm for 1.5 hours with 50 minutes per hour working.Deploy 4 Jack hammers / Stooper drills for 1.5 hours with 50 minutes per hour working.Deploy Drilling jumbo for 4 hours including fixing bolts.Deploy 10 hp pump for 1.5 hour for pumping water to storage tank.

3. Requirement of workforce ( other than machinery crew ) :Gas cutter for preparing washers and wedges : 0.5 No.Turner for threading bolts : 1 No.Hammerman : 0.5 No.Fitter for fixing bolts : 0.5 No.Khalasis 2 Nos for 0.5 day : 1 No.Heavy mazdoor for assisting in cutting / fabrication / fixing : 2 Nos.

4. Re-handling lead for materials:As rock bolts are stored outside tunnel and are to be conveyed inside tunnel after fabrication at workshop re-handling lead of 1 km is considered.

5. Use rate of materials :Cost of drill rod 2.5 m long @ `: 6723.00 / No. `: 6723.00Life of drill rod with reconditioning : 150 mUse rate of drill rod per m drilling ( cost / life ) `: 44.82Cost of air hose 25 m / jack hammer `: 204.00 / Rm `: 5100.00Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 6.38Cost of water hose 25m/jack hammer `: 188.00 / Rm `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88


in `.1 Rein.Steel with 2.5 % wastage kg 85.00 49.03 4167.642 Steel plate for washers kg 64.50 39.55 2550.78

Contd

Quantity Ratein `.

39

Perticulars



in `.Contd

3 Resin bond cement grout capsule Nos. 10.00 73.00 730.004 M S Nuts for bolts kg 4.00 90.00 360.005 Use rate of drill rod Rm 20.00 44.82 896.40

Reconditioning charges @ 10% 89.646 Use rate of air hose 4 Nos Hour 6.00 6.38 38.257 Use rate of water hose 4 Nos Hour 6.00 5.88 35.258 Sundries(gas for cutting etc) LS 5.00 45.00 225.00









Fuel / Energy charges Hour 4.00 51.00 204.006 Sundries ( lathe, etc ) LS 7.00 45.00 315.00




in `.1 Crew for Air compressor Hour 1.50 178.00 267.002 Crew for pump Hour 1.50 82.00 123.003 Crew for Jack hammer Hour 6.00 334.00 2004.004 Crew for Drilling jumbo Hour 4.00 178.00 712.005 Fitter Day 0.50 436.00 218.006 Gas cutter Day 0.50 436.00 218.007 Turner Day 1.00 436.00 436.008 Khalasi ( 2 x 0.5 ) Day 1.00 436.00 436.00

Contd

Description

Description

Quantity Ratein `.

Quantity

Perticulars Quantity Rate

Rate

in `.

in `.

40



in `.Contd

9 Hammerman Day 0.50 421.00 210.5010 Heavy mazdoor Day 2.00 411.00 822.00





Total `: 23985.28Add for 1 km rehandling lead charges :For steel 150 kg @ `: 358.20 / tonne `: 53.73 Total cost for 20.00 Rm `: 24039.01



ITEM: Providing, fabricating and fixing in position permanent structural steel supports as per details including cost of all materials, machinery, labour, ventilation, lighting, drainage cutting, bending, welding, grinding, and all other ancillary operations etc., complete with lead upto 1 km andall lifts.

DATA:Clear diameter of tunnel : 4.50 mAssuming 300 mm thick concrete lining and about 25 cm extra excavation for fixing permanentstructural steel supports and further 20 cm pay line margin the over all width of tunnel for excavation will be 6.00 m.Permanent steel supports are generally provided in the form of quarter / half / full rib dependingon the condition of rock and mode of excavation and size of sections. For the purpose of rateanalysis quarter arch rib fabrication is considered.Generally, the depth of rib will be considered at 25 mm per metre width of tunnel and thespacing of ribs depends on the condition of strata to be supported. Average spacing of 5 timesthe depth of rib ( generally 2 ribs per blast ) is considered for analysis.For 6 m wide tunnel the depth of rib required will be 150 mm.

41

in `.RateDescription Quantity


Further, to provide adiquate bearing for lagging sectoins wide flanged structural steel beams areconsidered for tunnel supporting ribs.

Arch rib

Rib joint

Tie rod

Vertical support

TYPICAL SKETCH SHOWING TUNNEL SUPPORTS

Consider ISWB 150 x 100 sections @ 0.75 m c / c.Consider 10 mm plate for fabrication of end plates.Consider 25 mm dia bars for anchorage and tie rods with washers and nuts @ 1 m c/c.Arch ribs 4 Nos of 2.25 m length each @ 17 kg / m : 154.00 kgVertical ribs 2 Nos of 2.75 m length each @ 17 kg / m : 94.00 kgEnd plates 12 Nos 0.2 x 0.2 m each @ 78.5 kg / sqm : 38.00 kgTie rods 14 Nos 25 mm dia 0.9 m length @ 3.85 kg / m : 49.00 kgBolts / Nuts / Washers for connections : 15.00 kgTotal weight / set of support excluding wastage say : 350.00 kgAssuming requirement of 2 supports per blast length of 1.5 m and considering 4 hours time forerection of each support, the time required for erection of 1.00 tonne steel supports will be

( 1000 x 4 / 350 ) say : 11.5 hours1. Requirement of materials :

For 1 tonne of permanent supports requirement of materials is considered as under includingwastage in cutting and fabrication at 2.5 percent.ISWB 150 sections for ribs ( 248 x 1000 x 1.025 / 350 ) : 726 kg10 mm thick plates for end connections ( 38 x 1000 x 1.025 / 350 ) : 111 kg25 mm dia bars for anchors and tie rods ( 49 x 1000 x 1.025 / 350 ) : 144 kgBolts / Nuts / Washers for fitting ( 15 x 1000 x 1.025 / 350 ) : 44 kg

Total : 1025 kgLength of welding for 1 t supports : 8.4 mNo.of welding electrodes for 8.4 m welding for support @ 10 / Rm. : 84 Nos.Oxygen gas for cutting sections : 2.4 cumAcetylene gas for cutting sections : 0.8 cum

2. Requirement of machinery :Deploy bending machine for 8 hours for bending arch ribs.Deploy welding machine for 16 hours for welding end plates.Deploy drilling jumbo for 12 hours for erection of 1 tonne supports.Deploy up-right drilling machine for 8 hours for drilling holes in end plates.Deploy grinding machine for 2 hours for finishing end plates.

3. Requirement of workforce ( other than machinery crew ) :For cutting & preparing sections:Structural steel Marker : 1 No.Gas cutter : 2 Nos.

42


Fitter : 2 Nos.Turner : 1 No.Khalasi : 4 Nos.Helper fabrication : 4 Nos.For welding sections:Welder : 2 Nos.Helper fabrication : 4 Nos.Khalasi : 4 Nos.For erection of supports:Foreman : 1 No.Structural steel Erector : 2 Nos. Helper erector : 4 Nos.Khalasi : 4 Nos.

4. Re-handling lead for materials:As structural steel sections are stored outside tunnel and are to be conveyed inside tunnel afterfabrication at workshop re-handling lead of 1 km is considered.

RATE ANALYSIS UNIT : 1.00 tonneA. MATERIALS: Sl No Unit Amount

in `.1 Structural steel beams kg 726.00 39.55 28711.122 Structural steel plates kg 111.00 39.55 4389.723 Steel bars for tie rods & anchors kg 144.00 39.55 5694.774 For cutting sections:

Oxygen gas @ 2.4 cum / t cum 2.40 84.00 201.60Acetylene gas @ 0.8 cum / t cum 0.80 404.00 323.20

5 For welding sections:Electrodes 4x450 mm @ 84 Nos / t Nos. 84.00 10.00 840.00

6 For field connections:M.S.Bolts / Nuts & Washers kg 44.00 90.00 3960.00

7 Sundries (welding holder/cutting torch) LS 15.00 45.00 675.00Total `: 44795.41

Add for small Tools and Plants @ 1% `: 447.95Add for Contractor's Profit @ 10% `: 4479.54Add for Contractor's Overheads @ 5% `: 2239.77



in `.1 Bending machine Hour 8.00 26.00 208.00

Fuel / Energy charges Hour 8.00 111.00 888.002 Welding transformer Hour 16.00 8.00 128.00

Fuel / Energy charges Hour 16.00 89.00 1424.003 Drilling Jumbo Hour 12.00 275.00 3300.00

Fuel / Energy charges Hour 12.00 51.00 612.004 Up-right drilling machine Hour 8.00 13.00 104.00


Perticulars

Description

in `.

in `.

Quantity Rate

43

Quantity Rate



in `.Contd

5 Grinding machine Hour 2.00 13.00 26.00Fuel / Energy charges Hour 2.00 37.00 74.00

6 Sundries ( lathe for threading etc ) LS 18.25 45.00 821.25Total `: 7881.25




in `.1 Crew for Drilling Jumbo Hour 12.00 178.00 2136.002 Crew for Bending machine Hour 8.00 131.00 1048.003 Crew for Drilling machine Hour 8.00 164.00 1312.004 Crew for Grinding machine Hour 2.00 164.00 328.005 For cutting & preparing sections:

Structural steel Marker Day 1.00 436.00 436.00Gas cutter Day 2.00 436.00 872.00Fitter Day 2.00 436.00 872.00Turner Day 1.00 421.00 421.00Khalasi Day 4.00 436.00 1744.00Helper fabrication Day 4.00 421.00 1684.00

6 For welding sections:Welder Day 2.00 436.00 872.00Helper fabrication Day 4.00 421.00 1684.00Khalasi Day 4.00 436.00 1744.00

7 For erection of supports:Foreman Day 1.00 436.00 436.00Structural steel Erector Day 2.00 436.00 872.00Helper erector Day 4.00 421.00 1684.00Khalasi Day 4.00 436.00 1744.00




TOTAL `: 88734.81

Description

Description

in `.

Rate

Quantity Rate

44

Quantityin `.


Add for Air and Water line @ 0.90% `: 798.61Add for Ventilation @ 0.00% `: 0.00Add for Lighting @ 1.90% `: 1685.96Add for Ele sub-station / Demand charges @ 4.60% `: 4081.80Add for other enabling works @ 1.50% `: 1331.02

Total `: 96632.21Add for 1 km rehandling lead charges :For steel 1000 kg @ `: 358.20 / tonne `: 358.20 Total cost for 1.00 tonne `: 96990.41

Rate per tonne `: 96990.41Rate approved per tonne `: 96990.00


ITEM: Providing, fabricating and fixing in position temperary structural steel supports as per detailsand dismantling and conveying the same to other place or outside tunnel before concreting including cost of all materials, machinery, labour, ventilation, lighting, drainage, cutting, bending, welding, grinding, and all other ancillary operations etc., complete with lead upto 1 km and all lifts.

DATA:As the temperary supports are dismantled before concreting and reused else where the cost ofmaterials including fabrication will be per use of supports.As per the data under Item-11 consider 1 tonne suppots for analysis. Consider 20 uses for support materials.

1. Requirement of materials :Requirement of materials for supports per tonne : Same as in item- 11Structural beams : 726 kgStructural plates : 111 kgTie rods and anchors : 144 kgMS bolts / nuts / washers : 44 kgOxygen gas per tonne fabrication : 2.40 cum Acetylene gas per tonne fabrication : 0.80 cumWelding electrodes per tonne fabrication : 84 Numbers

2. Requirement of machinery :Requirement of machinery for supports per tonne : Same as in item- 11 except drilling jumbo.For 20 uses of supports the drilling jumbo will be used for 16 hours each time ( 12 hours forerection of supports and 4 hours for dismantling the bolted supports ).Bending machine : 8 hoursWelding transformer : 16 hoursUp-right drilling machine : 8 hoursGrinding machine : 2 hoursDrilling jumbo ( for each use 12 hrs for erection & 4 hrs for dismantling ) : 16 hours

3. Requirement of workforce ( other than machinery crew ) :Requirement of labour for supports per tonne : Same as in item- 11 except for erection and dismantling of supports. For erection and dismantling the requirement of labour will be for eachuse of supports.Labour charges for dismantling : @ 50 percent of labour charges for erection.

4. Re-handling lead for materials:As structural steel sections are stored outside tunnel and are to be conveyed inside tunnel afterfabrication at workshop re-handling lead of 1 km is considered.

45


RATE ANALYSIS UNIT : 1.00 tonneA. MATERIALS ( for 20 uses ) : Sl No Unit Amount

in `.1 Structural steel beams kg 726.00 39.55 28711.122 Structural steel plates kg 111.00 39.55 4389.723 Tie rods & anchors kg 144.00 39.55 5694.774 For cutting sections:

Oxygen gas @ 2.40 cum / t cum 2.40 84.00 201.60Acetylene @ 0.8 cum / t cum 0.80 404.00 323.20

5 For welding sections:Electrodes 4x450 mm @ 84 Nos / t Nos. 84.00 10.00 840.00

6 For field connections:M.S.Bolts / Nuts / Washers kg 44.00 90.00 3960.00

7 Sundries (welding holder/cutting torch) LS 15.00 45.00 675.00Total `: 44795.41


Total cost of Materials for 20 uses of supports : `: 51962.67Cost per use considering 20 uses : `: 2598.13

B. MACHINERY ( for fabrication ) : Sl No Unit Amount


Fuel / Energy charges Hour 8.00 111.00 888.002 Welding transformer Hour 16.00 8.00 128.00

Fuel / Energy charges Hour 16.00 89.00 1424.004 Up-right drilling machine Hour 8.00 13.00 104.00

Fuel / Energy charges Hour 8.00 37.00 296.005 Grinding machine Hour 2.00 13.00 26.00

Fuel / Energy charges Hour 2.00 37.00 74.006 Sundries ( lathe for threading etc ) LS 12.00 45.00 540.00


Total hire charges of Machinery : `: 4194.48Cost per use considering 20 uses : `: 209.72

C. MACHINERY ( for erection and dismantling ) : Sl No Unit Amount

in `.1 Drilling Jumbo Hour 16.00 275.00 4400.00


Total `: 5306.00Add for small Tools and Plants @ 1% `: 53.06

Contd

Description

Perticulars

Rate

RateQuantity

in `.

Quantity Ratein `.

in `.

46

Description

Quantity


C. MACHINERY ( for erection and dismantling ) ( Contd ) : Sl No Unit Amount

in `.Contd

Add for Contractor's Profit on DPOL / Energy @ 10% `: 90.60Add for Contractor's Overheads @ 5% `: 265.30


D. LABOUR ( for fabrication ): Sl No Unit Amount

in `.1 Crew for Bending machine Hour 8.00 131.00 1048.002 Crew for Drilling machine Hour 8.00 164.00 1312.003 Crew for Grinding machine Hour 2.00 164.00 328.004 For cutting & preparing sections:

Structural steel Marker Day 1.00 436.00 436.00Gas cutter Day 2.00 436.00 872.00Fitter Day 2.00 436.00 872.00Turner Day 1.00 421.00 421.00Khalasi Day 4.00 436.00 1744.00Helper fabrication Day 4.00 421.00 1684.00

5 For welding sections:Welder Day 2.00 436.00 872.00Helper fabrication Day 4.00 421.00 1684.00Khalasi Day 4.00 436.00 1744.00


Total cost of Labour : `: 18353.97Cost per use considering 20 uses : `: 917.70

E. LABOUR ( for erection and dismantling ): Sl No Unit Amount

in `.1 Crew for Drilling jumbo Hour 16.00 178.00 2848.002 For erection of supports:

Foreman Day 1.00 436.00 436.00Structural steel Erector Day 2.00 436.00 872.00Helper erector Day 4.00 421.00 1684.00Khalasi Day 4.00 436.00 1744.00

3 For dismantling of supports:Foreman Day 0.50 436.00 218.00Structural steel Erector Day 1.00 436.00 436.00Helper erector Day 2.00 421.00 842.00Khalasi Day 2.00 436.00 872.00

Total `: 9952.00Contd

Description

Quantity Rate

Rate

Quantity Rate

Quantity

Description

in `.

in `.Description

47

in `.


E. LABOUR ( for erection and dismantling ) ( Contd ) : Sl No Unit Amount

in `.Contd

Add for small Tools and Plants @ 1% `: 99.52Add for Contractor's Profit @ 10% `: 995.20Add for hidden cost on Labour @ 15% `: 1492.80Add for additional hidden cost on labour @ 10% `: 995.20Add for Contractor's Overheads @ 5% `: 497.60


ABSTRACT:A. Cost of Materials `: 2598.13B. Hire charges of Machinery for fabrication `: 209.72C. Hire charges of Machinery for erection and dismantling `: 5714.96D. Cost of Labour for fabrication `: 917.70E. Cost of Labour for erection and dismantling `: 14032.32


Total `: 25561.92Add for 1 km rehandling lead charges ( 2 times ) :For steel 1.00 t for erection @ `: 358.20 / tonne `: 358.20For steel 1.00 t after dismantling @ `: 358.20 / tonne `: 358.20 Total cost for 1.00 tonne `: 26278.32



ITEM: Providing and fixing hard variety cut jungle wood for lagging / blocking locations in tunnel wherever required including cost of all materials, machinery, labour, ventilation, lighting,drainage, fixing in position, etc complete with all leads and lifts.

DATA:Generally 50 to 65 mm thick cut jungle wood planks are placed behind supports as lagging /blocking to prevent loosening and over falling of weak / highly jointed rock formations duringdaily blasting for excavation of tunnel.20 to 25 sqm area can be covered by 1 cum of cut jungle wood sections.Consider 1 cum cut jungle wood sections for lagging.Consider 4.5 percent extra cut jungle wood sections for wedges / wastage etc.

1. Requirement of materials :Cut jungle wood ( 1 x 1.045 ) : 1.045 cum

2. Requirement of machinery :Deploy drilling jumbo for 2 hours for fixing laggings.

Quantity RateDescription

48

in `.


3. Requirement of workforce ( other than machinery crew ) :Carpenter Cl - II : 1 No.Helper carpenter : 1 No.Heavy mazdoor : 1 No.

RATE ANALYSIS UNIT: 1.00 cumA. MATERIALS: Sl No Unit Amount

in `.1 Cut jungle wood cum 1.045 35068.00 36646.062 Sundries LS 1.25 45.00 56.25









in `.1 Crew for Drilling jumbo Hour 2.00 178.00 356.002 Carpenter Cl II Day 1.00 421.00 421.003 Helper carpenter Day 1.00 421.00 421.004 Heavy mazdoor Day 1.00 411.00 411.00




TOTAL `: 45649.09

Perticulars

Description

in `. Quantity Rate

Quantity Rate

in `.

Description

Quantity

49

in `.

Rate


Add for Air and Water line @ 0.90% `: 410.84Add for Ventilation @ 0.00% `: 0.00Add for Lighting @ 1.90% `: 867.33Add for Ele sub-station / Demand charges @ 4.60% `: 2099.86Add for other enabling works @ 1.50% `: 684.74 Total cost for 1.00 cum `: 49711.86



ITEM: Providing and constructing un-coursed rubble stone masonry with approved stones from tunnel excavated muck in CM 1 : 6 proportion by volume for backfilling over cuts / slips ontunnel sides due to geological faults etc., including cost of all materials, machinery, labour,ventilation, lighting, drainage, cleaning,scaffolding, batching and mixing mortar, packing mortar and wedging stone chips into joints, curing, complete with lead upto 1 km and all lifts.

DATA:For 1 cum masonry :- Rubble stones : 0.83 cum Stone chips : 0.13 cum.Sand : 0.40 cum. Cement : 95 kg. Wastage : 1 % for cement & 2 % for stones & sand.Cement mortar preparation : ManualOutput of 1 Mason Cl-I and 2 Mason Cl-II assumed @ : 10 cum / dayConsider 10 cum rubble stone masonry for rate analysis.

1. Requirement of materials :Rubble stones ( 10 x 0.83 x 1.02 ) : 8.50 cumStone chips ( 10 x 0.13 x 1.02 ) : 1.30 cumCement ( 10 x 95 x 1.01 ) : 960 kgSand ( screened ) ( 10 x 0.4 x 1.02 ) : 4.10 cum

2. Requirement of machinery :Manual mixing of mortar is assumed. Deploy 10 hp pump for 1 hour for water required for mortar mixing and curing.

3. Requirement of workforce ( other than machinery crew ) :Maistry : 1 No.Mason Cl-I : 1 No.Mason Cl-II : 2 Nos.Heavy mazdoor for sorting out rubble in dump yard : 2 Nos.for supplying rubble to masons : 4 Nos.for preparing mortar : 2 Nos.for loading mortar pans : 2 Nos.for laying & packing mortar : 4 Nos.Light mazdoorfor conveying mortar / stone chips : 5 Nos.for cleaning / curing : 2 Nos.

4. Re-handling lead for materials:As cement / sand / rubble / stone chips stored / stacked outside tunnel and are to be conveyedto the work spot inside tunnel re-handling lead of 1 km is considered.

50



in `.1 Cement kg 960.00 5.56 5337.602 Rubble stones ( at dump yard ) cum 8.50 360.00 3060.003 Stone chips ( at dump yard ) cum 1.30 435.00 565.504 Sand ( screened ) cum 4.10 1000.00 4100.00

Total `: 13063.10Add for small Tools and Plants @ 1% `: 130.63Add for Contractor's Profit @ 10% `: 1306.31Add for Contractor's Overheads @ 5% `: 653.16Add for scaffolding @ 2.5% `: 326.58Add Royalty charges on Rubble @ ( Included in material rate ) `: 0.00Add Royalty charges on Sand @ ( Included in material rate ) `: 0.00



in `.1 10 hp pump ( ele ) Hour 1.00 3.00 3.00

Fuel / energy charges Hour 1.00 74.00 74.002 Sundries LS 1.50 45.00 67.50




in `.2 Crew for Pump Hour 1.00 82.00 82.003 Maistry Day 1.00 436.00 436.004 Mason Class-I Day 1.00 436.00 436.005 Mason Class-II Day 2.00 421.00 842.006 Heavy mazdoor

for sorting out rubble in dump yard Day 2.00 411.00 822.00for conveying rubble Day 4.00 411.00 1644.00for preparing mortar Day 2.00 411.00 822.00for loading mortar pans Day 2.00 411.00 822.00for laying & packing mortar Day 4.00 411.00 1644.00

7 Light mazdoor for cleaning / curing Day 2.00 411.00 822.00for conveying mortar / chips Day 5.00 411.00 2055.00

Total `: 10427.00Add for small Tools and Plants @ 1% `: 104.27Add for Contractor's Profit @ 10% `: 1042.70Add for hidden cost on Labour @ 15% `: 1564.05

Contd

Description

in `.

Perticulars

in `.

51

Description

Quantity Rate

Quantity Rate

in `.RateQuantity



in `.Contd

Add for additional hidden cost on labour @ 10% `: 1042.70Add for Contractor's Overheads @ 5% `: 521.35Add for labour for scaffolding @ 2.50% `: 260.68


ABSTRACT:A. Cost of Materials including royalty charges `: 15479.77B. Hire charges of Machinery `: 167.32C. Cost of Labour `: 14962.75


Total `: 33334.11Add for 1 km rehandling lead charges :For cement 960 kg @ `: 358.20 / tonne `: 343.87For sand 4.10 cum @ `: 213.90 / cum `: 876.99For stones and chips 9.80 cum @ `: 330.25 / cum `: 3236.45 Total cost for 10.00 cum `: 37791.43


Note: Rubble stones and stone chips from tunnel excavation for masonry shall be issued at dumpyard at specified issue rates .


ITEM: Providing, fabricating and placing in position reinforcement steel for tunnel RCC worksincluding cost of all materials, machinery, labour, ventilation, lighting, drainage, cleaning, straightening, cutting, bending, hooking, lapping / welding joints wherever required, tying with 1.25 mm dia.soft annealed steel wire etc.,complete with lead upto 1 km and all lifts.

DATA:No welding of reinforcement bars is considered since the diameter of bars for tunnel RCC workswill be generally less than 32 mm.As concrete will be placed by pneumatic placer, the reinforcement bars have to be held regidlyin place to prevent displacement due to shooting effect of concrete. This requires about50 percent more binding wire compared to locations where concrete placement is by manuallabour.Wastage of steel assumed at 2.5 percent.Quantity of binding wire for works other than tunnel : 9 kg / tonneConsider 1 tonne reinforcement steel for rate analysis.

1. Requirement of materials :Reinforcement steel ( 1 x 1.025 ) : 1.025 tBinding wire ( 9 x 1.5 ) : 13.5 kg

QuantityDescription

52

in `.Rate


2. Requirement of machinery :No machinery is required.

3. Requirement of workforce ( other than machinery crew ) :In view of restricted head room between shuttering and excavation line placing reinforcementwill be slow compared to open area.Further bars in transverse direction are to be bent to matchthe profile of tunnel. This requires more labour for bending at fabrication yard and for placingbars in position in tunnel.Cleaning and straightening : 2 Bar benders & 2 Heavy mazdoorsMarking, bending and stacking : 2 Bar benders & 4 Heavy mazdoorsPlacing in position and tying : 4 Bar benders & 4 Heavy mazdoorsChecking, correcting & misc. works : 1 Bar bender & 2 Heavy mazdoors

4. Re-handling lead for materials:As reinforcement steel is stored outside tunnel and is to be conveyed inside tunnel afterfabrication at fabrication yard re-handling lead of 1 km is considered.


in `.1 Rein.Steel with 2.5 % wastage tonne 1.025 49031.00 50256.782 Binding wire 1.25 mm dia kg 13.50 57.00 769.503 Sundries ( chairs / spacers etc ) LS 15.00 45.00 675.00




in Rs.1 Sundries LS 0.50 45.00 22.50

0.00 0.00 0.00Total `: 22.50




in `.1 Bar bender Day 9.00 436.00 3924.002 Heavy mazdoor Day 12.00 411.00 4932.00


Contd

Perticulars

Description

Description Ratein `.

Quantity

53

in `.

Quantity

Quantity Rate

in Rs.Rate



in `.Contd





Total `: 78935.39Add for 1 km rehandling charges :For steel 1.000 tonne @ `: 358.20 / tonne `: 358.20 Total cost for 1.00 tonne `: 79293.59



ITEM: Providing and laying insitu vibrated M-10 ( 28 days cube compressive strength not less than 10 N / sq mm ) grade cement concrete using 40 mm down approved, clean, hard, gradedaggregates crushed from tunnel excavated rock for filling and levelling over-cuts in beddue to geological faults etc., including cost of all materials, machinery, labour, ventilation, lighting, drainage, cleaning bed, batching and mixing concrete, conveying upto placing point in agitator cars, placing in position, levelling, compacting, finishing, curing, and all other ancillary operations etc., complete with lead upto 1 km and all lifts. ( Cement content : 220 kg / cum with use of super plasticiser )

DATA:For 1 cum CC :- Coarse aggregates : 0.86 cum ( 1365 kg ) Blending ratio : 50 :30 : 20Fine aggregate : 0.42 cum ( 675 kg ) Cement content : 220 kg Super plasticizer : 0.70 ltrWastage : 1 % for cement and 2 % for coarse & fine aggregates.Consider 2 cum capacity agitator car for conveying concrete.Cycle time for one round trip:Turning and spotting : 2 minLoading 4 mixes of 0.5 cum @ 5 min per mix : 20 minRunning time from BP to placing point av. 1 km : 10 minUnloading concrete : 15 minReturn trip to BP : 10 minTotal cycle time for round trip Total : 57 minConsider 2 Agitator cars for conveying concrete.The rate of concreting for 2 agitator cars with 50 min / hr working : 3.50 cum / hr

Description

54

Quantity Ratein `.


Capacity of batching plant with 70 percent job / management efficiency and 50 min / hr working ( 3.50 x 60 / 50 / 0.70 ) : 6 cum / hr

Consider 6 cum / hour rated capacity non-tilting type batching plant.Consider 10 hp pump for pumping water to storage tank for mixing concre / curing requirements.Progress of concreting per shift of 8 hours ( 8 x 3.50 ) : 28 cumConsider 28 cum concrete for rate analysis.

1. Requirement of materials :Cement for mix with 1 % wastage ( 28 x 220 x 1.01 ) : 6222 kgCoarse aggregate 40-20 mm size range ( 28 x 0.86 x 0.5 x 1.02 ) : 12.30 cumCoarse aggregate 20-10 mm size range ( 28 x 0.86 x 0.3 x 1.02 ) : 7.35 cumCoarse aggregate 10-4.75 mm size ( 28 x 0.86 x 0.2 x 1.02 ) : 4.90 cumFine aggregate ( 28 x 0.42 x 1.02 ) : 12.00 cumSuper plasticiser ( 28 x 0.70 x 1.02 ) : 21.50 ltrs

2. Requirement of machinery :Deploy 6 cum / hour rated capacity batching plant for 8 hours for production of concrete.Deploy 2 Nos 2 cum capacity agitator cars for 8 hours for conveying concrete.Deploy 1 Needle vibrater 40 mm dia for 8 hours for vibrating concrete.Deploy 1 Pump 10 hp for 4.00 hour for water required for concrete mixing / curing / cleaning etc.

3. Formwork & scaffolding :No shuttering / scaffolding is required for filling over excavations in bed.

4. Requirement of workforce ( other than machinery crew ) :Consider batching of materials and conveyance & laying of concrete by manual labour.Maistry ( 1 @ batching plant and 1 @ placing point ) : 2 Nos.Mason Cl I : 1 No.Heavy mazdoor:For batching cement : 2 Nos.For remixing & filling mortar pans : 2 Nos.For loading mortar pans : 2 Nos.For laying concrete : 2 Nos.For cleaning bed and assisting Mason : 1 No.For miscellaneous works at BP : 1 No.Light mazdoor:For conveying concrete @ 3 cum / day : 9 Nos.For cleaning, curing & miscellaneous : 1 No.

5. Re-handling lead for materials:As cement store can be located close to BP no re-handling lead considered.Consider 2 cement handling mazdoors for loading cement to BP bin.As coarse and fine aggregates can be stocked near the BP no re-handling lead considered.Consider 4 heavy and 4 light mazdoors for loading CA to BP bins @ 6 cum / dayConsider 2 heavy and 2 light mazdoors for loading FA to BP bins @ 6 cum / day


in `.1 Cement for mix kg 6222.00 5.56 34594.322 Coarse aggregate 40-20 mm cum 12.30 1015.00 12484.50 Coarse aggregate 20-10 mm cum 7.35 1325.00 9738.75 Coarse aggregate 10 mm below cum 4.90 1615.00 7913.50

Contd

Perticulars Quantityin `.Rate

55



in `.Contd

3 Fine aggregate ( screened ) cum 12.00 1000.00 12000.004 Super Plasticizer ltr 21.50 111.00 2386.505 Sundries LS 1.00 45.00 45.00

Total `: 79162.57Add for small Tools and Plants @ 1% `: 791.63Add for Contractor's Profit @ 10% `: 7916.26Add for Contractor's Overheads @ 5% `: 3958.13Add Royalty charges on CA @ ( Included in material rate ) `: 0.00Add Royalty charges on FA @ ( Included in material rate ) `: 0.00



in `.1 Batching plant 6 cum / hr rated capacity Hour 8.00 86.00 688.00

Fuel / Energy charges Hour 8.00 184.00 1472.002 Agitator car 2 cum Hour 16.00 483.00 7728.00

Fuel / Energy charges Hour 16.00 1044.00 16704.003 10 hp pump ( ele ) Hour 4.00 3.00 12.00

Fuel / Energy charges Hour 4.00 74.00 296.004 Needle vibrator 40 mm dia Hour 8.00 5.00 40.00





in `.1 Crew for Batching plant Hour 8.00 321.00 2568.002 Crew for Agitator car Hour 16.00 267.00 4272.003 Crew for Pump Hour 4.00 82.00 328.004 Crew for Needle vibrator Hour 8.00 158.00 1264.005 Mason Class-I Day 1.00 436.00 436.006 Maistry Day 2.00 436.00 872.007 Cement handling mazdoor

for loading material bin ( Cement ) Day 2.00 411.00 822.008 Heavy mazdoor

for cleaning bed Day 1.00 411.00 411.00for miscellaneous works at BP Day 1.00 411.00 411.00for loading CA to BP bins Day 4.00 411.00 1644.00for loading FA to BP bin Day 2.00 411.00 822.00

Contd

Perticulars


Description

56

in `.RateQuantity

Quantity Ratein `.



in `.Contd

for laying concrete Day 6.00 411.00 2466.009 Light mazdoor

for loading CA to BP bins Day 4.00 411.00 1644.00for loading FA to BP bin Day 2.00 411.00 822.00for conveying laying concrete Day 9.00 411.00 3699.00for curing & miscellaneous Day 1.00 411.00 411.00






Note: Rubble stones and stone chips from tunnel excavation for coarse aggregate crushing shall be issued at dump yard at specified issue rates .


ITEM: Providing and laying insitu vibrated M-20 ( 28 days cube compressive strength not less than20 N / sqmm ) grade cement concrete using 40 mm down approved clean, hard, gradedaggregates crushed from tunnel excavated rock for kerb and bed lining including cost of all materials, machinery, labour, ventilation, lighting, drainage, formwork, batching and mixing concrete, conveying upto placing point in agitator cars, placing in position, levelling, vibrating, finishing, curing, and all other ancillary operations etc., complete with lead upto 1 km and all lifts. ( Cement content 270 kg / cum with use of super plasticiser )

Cost of shuttering : Annexure: AConsider one shutter and one soldier set :Shutter size : 900 mm x 1200 mm Length of soldier : 2.3 m Shutter area : 1.20 sqm4 mm thick plate 1.08 sqm @ 31.4 kg / sqm : 33.91 kg

Description Rate

57

in `. Quantity


50x50x6 mm angle 6.6 m length @ 3.8 kg / m : 25.08 kg50x6 mm flat 1.8 m length @ 2.35 kg / m : 4.23 kgISLC 100 2.3 m length @ 7.9 kg / m : 18.17 kg6 mm plate 0.03 sqm @ 47.1 kg / sqm : 1.41 kgCost of 4 mm plate 33.91 kg @ `: 39.55 / kg `: 1341.04Cost of 6.6 m angle 25.08 kg @ `: 39.55 / kg `: 991.84Cost of 1.8 m flat 4.23 kg @ `: 39.55 / kg `: 167.28Cost of 2.3 m soldier 18.17 kg @ `: 39.55 / kg `: 718.57Cost of 6mm plate 1.41 kg @ `: 39.55 / kg `: 55.76

Total `: 3274.49Add for wastage @ 2.5 % `: 81.86Add for bolts & nuts @ 0.5 kg / sqm `: 90.00 / kg `: 45.00Add for fabrication of shutter @ `: 18.00 / kg `: 1490.40

Total `: 4891.75Less salvage value @ 10% `: -489.18

Total `: 4402.58Use rate of shutters:Use rate of shutters considering average 40 uses `: 110.06Add for repairs/ replacements / catwalks etc., @ 15% `: 16.51Add for binding wire/ temperary supports etc., @ 5% `: 5.50Add for shutter oil at 0.2 ltr / sqm @ `: 33.00 / ltr `: 6.60

Total `: 138.68Effective area of shutter & soldier with 10 cm margin at top and bottom : 1.00 sqmCost of shuttering for concrete / use / sqm `: 138.68( Excluding T & P / Profit / Overheads)

Erection & dismantling shuttering : Annexure: B2 Fitters, 1 Carpentor Cl-II and 5 mazdoors erect 50 sqm shuttering / day.Cost of dismantling assumed at 50 % of erection charges.Area of shuttering with supports considered. : 100 sqmCleaning, conveying, erecting and oiling:Fitter shuttering 4 Nos. @ `: 421.00 / day `: 1684.00Carpentor Cl -II 2 Nos. @ `: 421.00 / day `: 842.00Heavy mazdoor 10 Nos. @ `: 411.00 / day `: 4110.00Dismantling and stacking:Fitter shuttering 2 Nos. @ `: 421.00 / day `: 842.00Carpentor Cl -II 1 Nos. @ `: 421.00 / day `: 421.00Heavy mazdoor 5 Nos. @ `: 411.00 / day `: 2055.00

Total `: 9954.00Labour charges for erecting and dismantling shuttering per sqm `: 99.54( Excluding T & P / Profit / Overheads / Hidden costs )

DATA:Concrete mix details for 50-70 mm slump: For 1 cum CC :- Coarse aggregates : 0.85 cum( 1350 kg ) Blending ratio : 50 :30 : 20Fine aggregate : 0.41 cum ( 665 kg ) Cement : 270 kg Super plasticizer : 0.81 ltrWastage : 1 % for cement and 2 % for coarse & fine aggregates.Consider 2 cum capacity agitator car for conveying concrete.Cycle time for one round trip:Turning and spotting : 2 minLoading 4 mixes of 0.5 cum @ 5 min per mix : 20 minRunning time from BP to placing point av. 1 km : 10 min

58


Unloading concrete : 15 minReturn trip to BP : 10 minTotal cycle time for round trip : 57 minDeploy 2 Agitator cars for conveying concrete.The rate of concreting for 2 agitator cars with 50 min / hr working : : 3.50 cum / hrProgress per shift of 8 hours: ( 8 x 3.50 ) : 28 cum

1. Requirement of materials :Cement for mix with 1 % wastage ( 28 x 270 x 1.01 ) : 7636 kgCement for incidentals @ 1 kg / cum ( 28 x 1 ) : 28 kgCoarse aggregate 40-20 mm size range ( 28 x 0.85 x 0.5 x 1.02 ) : 12.15 cumCoarse aggregate 20-10 mm size range ( 28 x 0.85 x 0.3 x 1.02 ) : 7.30 cumCoarse aggregate 10-4.75 mm size ( 28 x 0.85 x 0.2 x 1.02 ) : 4.85 cumFine aggregate ( 28 x 0.41 x 1.02 ) : 11.70 cumSuper plasticiser ( 28 x 0.81 x 1.02 ) : 23.00 ltrs

2. Requirement of machinery :Deploy 6 cum / hour rated capacity batching plant for 8 hours for production of concrete.Deploy 2 Nos 2 cum capacity agitator cars for 8 hours for conveying concrete.Deploy 1 Needle vibrater 40 mm dia for 8 hours for vibrating concrete.Deploy 1 Pump 10 hp for 4.00 hour for water required for concrete mixing / curing / cleaning etc.

3. Formwork & scaffolding :For kerb / bed concreting average 1 sqm shuttering is required per cum of concrete. Requirement of shuttering for 28 cum concrete : 28 sqm

4. Requirement of workforce ( other than machinery crew ) :Consider batching of materials and conveyance & laying of concrete by manual labour.Maistry ( 1 @ batching plant and 1 @ placing point ) : 2 Nos.Mason Cl I : 1 No.Mason Cl II : 1 No.Cement handling mazdoorfor loading cement to BP bin : 2 Nos.Heavy mazdoor:for remixing & filling mortar pans : 2 Nos.for loading mortar pans : 2 Nos.for laying concrete : 2 Nos.for cleaning bed and assisting Mason : 1 No.for miscellaneous works at BP : 1 No.Light mazdoor:for conveying concrete @ 2 cum / day : 14 Nos.for cleaning, curing & miscellaneous : 1 No.

5. Re-handling lead for materials:As cement store can be located close to BP no re-handling lead considered.Consider 2 cement handling mazdoors for loading cement to BP bin.As coarse and fine aggregates can be stocked near the BP no re-handling lead considered.Consider 4 heavy and 4 light mazdoors for loading CA to BP bins @ 6 cum / dayConsider 2 heavy and 2 light mazdoors for loading FA to BP bins @ 6 cum / day

59



in `.1 Cement 43 Gr kg 7636.00 5.56 42456.16

Cement for incidentals @ 1 kg / cum kg 28.00 5.56 155.682 Fine aggregate ( screened ) cum 11.70 1000.00 11700.003 Coarse aggregate 40-20 mm cum 12.15 1015.00 12332.25

Coarse aggregate 20-10 mm cum 7.30 1325.00 9672.50Coarse aggregate 10-4.75 mm cum 4.85 1615.00 7832.75

4 Super plasticiser ltr 23.00 111.00 2553.005 Use rate of shuttering for kerb / bed sqm 28.00 138.68 3882.97

Supports for shuttering @ 5 % 194.156 Sundries LS 2.00 45.00 90.00




in `.1 Batching plant 6 cum / hr rated capacity Hour 8.00 86.00 688.00

Fuel / Energy charges Hour 8.00 184.00 1472.002 Agitator car 2 cum ( 2 Nos ) Hour 16.00 483.00 7728.00

Fuel / Energy charges Hour 16.00 1044.00 16704.003 Needle Vibrator Hour 8.00 5.00 40.00

Fuel / Energy charges Hour 8.00 7.00 56.004 Pump 10 hp ( Ele ) Hour 4.00 3.00 12.00





in `.1 Crew for Batching plant Hour 8.00 321.00 2568.002 Crew for Agitator car Hour 16.00 267.00 4272.003 Crew for vibrator Hour 8.00 158.00 1264.004 Crew for pump Hour 4.00 82.00 328.005 Masom Cl I Day 1.00 436.00 436.006 Mason Cl II Day 1.00 421.00 421.00

Contd

Perticulars

Description

Description

Quantity

Rate

Quantity Rate

in `.

in `.

Quantity

Rate

60

in `.



in `.Contd

7 Hammerman for scaling bed Day 1.00 421.00 421.008 Maistry Day 2.00 436.00 872.009 Cement handling mazdoor

for loading cement to BP bin Day 2.00 411.00 822.0010 Heavy mazdoor

for miscellaneous work at BP Day 1.00 411.00 411.00for scaling & cleaning bed Day 1.00 411.00 411.00for loading CA to BP bins Day 4.00 411.00 1644.00for loading FA to BP bin Day 2.00 411.00 822.00for laying concrete Day 6.00 411.00 2466.00

11 Light mazdoorfor loading CA to BP bins Day 4.00 411.00 1644.00for loading FA to BP bin Day 2.00 411.00 822.00for conveying concrete Day 14.00 411.00 5754.00for curing / miscellaneous Day 1.00 411.00 411.00

12 Labour charges for shuttering sqm 28.00 99.54 2787.12Labour charges for supports @ 5 % 139.36








ITEM: Providing and laying insitu vibrated M-20 ( 28 days cube compressive strength not less than20 N / sqmm ) grade cement concrete using 40 mm down approved clean, hard, graded

61

in `.Description Quantity Rate


aggregates crushed from tunnel excavated rock for sides and arch lining including cost of all materials, machinery, labour, ventilation, lighting, drainage, formwork, rail mounted shuttering gantry, batching and mixing concrete, conveying upto placing point in agitator cars, placing in position using placer pump, levelling, vibrating, finishing, curing and all other ancillary operations etc., complete with lead upto 1 km and all lifts. ( Cement content: 300 kg / cum with use of super plasticiser )

DATA:Concrete mix details per cum for 80-100 mm slump: Cement 43 Gr : 300 kgFine aggregate : 680 kg / cum : 0.425 cumCoarse aggregate : 1265 kg / cum : 0.79 cumBlending ratio : 50 : 30 : 20Concrete admixture ( Super plasticiser ) : 0.90 ltr

Excavated line

Gantry shuttering

Concrete lining

Gantry frame

Gantry track

INDICATIVE ARRANGEMENT FOR ARCH / SIDE CONCRETING

Diameter of tunnel ( finished ) considered : 5.00 mHight of tunnel ( finished ) considered : 5.00 mTrack mounted collapsible gantry considered for supporting sides and arch concrete.Assume 9 m long collapsible type steel gantry Quantity of concrete / gantry considering 30 cm thick lining : 32.75 cum( considering 60 cm hight kerb above bed level already laid )Concrete for filling support reaches & pay line margin @ 45 % : : 14.75 cum ( for av. 10 cm pay line margin filling & 10 % tunnel length with supports )Average quantity of concrete / gantry length of lining say : 48.00 cum

Placing concrete for sides and arch : Placer pumpCycle time for one round trip:Turning and spotting : 2 minLoading 4 mixes of 0.5 cum @ 5 min per mix : 20 minRunning time from BP to placing point av. 1 km : 10 minUnloading concrete to placer drum : 24 minReturn trip to BP : 10 minTotal cycle time for round trip : 66 minConsider 2 cum capacity agitator cars for conveying concrete.Rate of concreting for 2 agitator cars with 50 min / hr working : 3.0 cum / hr

( 2 x 2 x 60 x 50 / 60 / 66 )Progress per shift of 8 hours: ( 8 x 3.00 ) : 24 cum

62


Time required for concreting one gantry length ( 48 / 3 ) : 16 hoursCycle time of various operations for concreting:Cleaning / scaling bed for laying track line : 2.00 hoursDismantling & extending track line : 4.00 hoursReleasing / moving / aligning gantry : 4.00 hoursCleaning & Oiling gantry / Bulk head fixing : 4.00 hoursPlacer pipe assembling for different positions : 6.00 hoursConcreting 48 cum @ 3.00 cum per hour : 16.00 hoursMiscellaneous / Break downs / pipe clogging etc : 4.00 hoursSetting time before release of gantry : 12.00 hoursConsidering cleaning / scaling bed / track dismsntling and erection are carried out as parallelactivities during setting time of concrete, the total cycle time for one gantry length concretingwill be about 48 hours. Out of 6 shifts ( 48 hours ) 3 shifts are considered as concreting shifts and 3 shifts areconsidered as preparatory shifts.Consider 48 cum concrete for rate analysis.

1. Requirement of materials :Cement for mix with 1 % wastage ( 488 x 300 x 1.01 ) : 14544 kgCement for incidentals @ 1 kg / cum ( 48 x 1 ) : 48 kgCoarse aggregate 40-20 mm size range ( 48 x 0.79 x 0.5 x 1.02 ) : 19.35 cumCoarse aggregate 20-10 mm size range ( 48 x 0.79 x 0.3 x 1.02 ) : 11.60 cumCoarse aggregate 10-4.75 mm size ( 48 x 0.79 x 0.2 x 1.02 ) : 7.75 cumFine aggregate ( 48 x 0.425 x 1.02 ) : 20.80 cumSuper plasticiser ( 48 x 0.90 x 1.02 ) : 44.00 ltrs

2. Requirement of machinery :Deploy 6 cum / hour rated capacity batching plant for 16 hours for production of concrete.Deploy 2 Nos 2 cum capacity agitator cars for 16 hours for conveying concrete.Deploy 8.5 cmm air compressor ( ele ) for 16 hours for supplying air to placer pump.Deploy pneumatically operated placer pump for 16 hours for pumping concrete.Deploy 1 Needle vibrater 40 mm dia for 16 hours for vibrating concrete.Deploy 1 Pump 10 hp for 8 hours for water required for concrete mixing / curing / cleaning etc.

3. Formwork & scaffolding :Track mounted collapsible gantry for supporting sides / arch concrete : 100 sqmEnd shuttering ( front face ) : 6 sqmIn view of track mounted gantry no scaffolding required.

4. Requirement of workforce ( other than machinery crew ) :Consider batching of materials and conveyance & laying of concrete by manual labour.Maistry ( 1 @ batching plant and 1 @ placing point for 2 shifts ) : 4 Nos.Mason Cl I ( 1 in each shift for 2 shifts ) : 2 Nos.Foreman : 1 No.Surveyor : 1 No.Stone chiseller Cl II : 0.5 No.Fitter shuttering : 1 No.Helper shuttering : 1 No.Khalasi ( 4 for 0.5 day ) : 2 Nos.

63


Heavy mazdoor:for miscellaneous works at BP ( 1 in each shift for 2 shifts ) : 2 Nos.for miscellaneous works at placer point ( 1 in each shift for 2 shifts ) 2 Nos.Light mazdoor:for cleaning, curing & miscellaneous ( 1 in each shift for 2 shifts ) : 2 Nos.

5. Re-handling lead for materials:As cement store can be located close to BP no re-handling lead considered.Consider 4 cement handling mazdoors ( 2 in each shift ) for loading cement to BP bin.As coarse and fine aggregates can be stocked near the BP no re-handling lead considered.Consider 6 heavy and 6 light mazdoors ( 3 each in each shift ) for loading CA to BP bins.Consider 4 heavy and 4 light mazdoors ( 2 each in each shift ) for loading FA to BP bins.

6. Use rate of materials :Surface area of gantry for sides and arch portion say : 105 sqmWeight of gantry @ 150 kg / sqm say : 16 tonnesCost of gantry including cost of steel, fabrication, painting, transportation and erection:Cost of beams / angles at 50 % @ `: / tonne `: 316376.00Cost of plates @ at 40 % @ `: / tonne `: 253100.80Cost of wheels / Jacks at 10 % @ `: / tonne `: 216000.00Cost of fabrication & painting @ `: / tonne `: 432000.00

Total `: 1217476.80Add for rails / fixtures etc., @ 7.5% `: 91310.76Add for transportation, erection & dismantling @ 12% `: 146097.22

Total `: 1454884.78Less salvage value @ 10% ( - ) `: -145488.48

Total `: 1309396.30Add for shutter oil at 0.2 ltr /sqm @ `: 33.00 / ltr `: 693.00

Total `: 1310089.30Considering 100 uses cost per use of gantry `: 13100.89Add for maintenance / repairs / replacements etc., @ 25% `: 3275.22

Total `: 16376.12Use rate of gantry / sqm / use considering 100 sqm effective area `: 163.76Use rate of gantry / sqm / use `: 163.76Requirement of end shutter : 6 sqmUse rate of end shutter per sqm ( Annexure-A Item-17 ) `: 138.68


in `.1 Cement 43 Gr kg 14544.00 5.56 80864.64

Cement for incidentals @ 1 kg / cum kg 48.00 5.56 266.882 Fine aggregate ( screened ) cum 20.80 1000.00 20800.003 Coarse aggregate 40-20 mm cum 19.35 1015.00 19640.25

Coarse aggregate 20-10 mm cum 11.60 1325.00 15370.00Coarse aggregate 10-4.75 mm cum 7.75 1615.00 12516.25

4 Super plasticiser ltr 44.00 111.00 4884.005 Use rate of end shuttering sqm 6.00 138.68 832.06

Contd

64

27000.00

Perticulars

39547.0039547.00

135000.00

Quantity Ratein `.



in `.Contd

6 Use rate of steel gantry sqm 100.00 163.76 16376.127 Sundries ( placer pipe etc ) LS 5.00 45.00 225.00




in `.1 Air compressor ( Ele ) 8.5 cmm Hour 16.00 73.00 1168.00 Fuel / Energy charges @ 75 % load Hour 12.00 415.00 4980.002 Batching plant 6 cum / hr rated capacity Hour 16.00 86.00 1376.00

Fuel / Energy charges Hour 16.00 184.00 2944.003 Agitator car 2 cum ( 2 Nos ) Hour 32.00 483.00 15456.00

Fuel / Energy charges Hour 32.00 1044.00 33408.004 Concrete placer pump Hour 16.00 92.00 1472.00

Fuel / Energy charges Hour 16.00 5.00 80.005 Needle Vibrator / Shutter vibrator Hour 16.00 5.00 80.00

Fuel / Energy charges Hour 16.00 7.00 112.006 Pump 10 hp ( Ele ) Hour 8.00 3.00 24.00





in `.1 Crew charges for Air compressor Hour 16.00 167.00 2672.002 Crew charges for Batching plant Hour 16.00 321.00 5136.003 Crew charges for Agitator car Hour 32.00 267.00 8544.004 Crew charges for placer pump Hour 16.00 85.00 1360.005 Crew charges for vibrator Hour 16.00 158.00 2528.006 Crew charges for Pump Hour 8.00 82.00 656.007 Stone chiseller Cl II

for scaling & cleaning Day 0.50 436.00 218.008 Surveyer

for laying / aligning track Day 0.50 736.00 368.00Contd

Description

RatePerticulars Quantity

in `.

in `.

Quantity

Description

Rate

65

Quantity Rate

in `.



in `.Contd

for moving / positioning gantry Day 0.50 736.00 368.009 Foreman

for laying / aligning track Day 0.50 436.00 218.00for releasing / moving gantry Day 0.50 436.00 218.00

10 Khalasifor releasing / moving gantry ( 4 x 0.5 ) Day 2.00 436.00 872.00

11 Fitter shutteringfor bulk head / placer pipe fixing ( 0.5 x 2 ) Day 1.00 421.00 421.00

12 Helper shutteringfor bulk head / placer pipe fixing ( 0.5 x 2 ) Day 1.00 421.00 421.00

13 Cement handling mazdoorfor loading cement to BP bin ( 2 x 2 ) Day 4.00 411.00 1644.00

14 Heavy mazdoorfor loading CA to BP bins Day 6.00 411.00 2466.00for loading FA to BP bin Day 4.00 411.00 1644.00for miscellaneous works of BP ( 1 x 2 ) Day 2.00 411.00 822.00for misc works @ placer point ( 1 x 2 ) Day 2.00 411.00 822.00

15 Masom Cl Ifor Laying concrete by placer ( 1 x 2 ) Day 2.00 436.00 872.00

16 Light mazdoorfor loading CA to BP bins Day 6.00 411.00 2466.00for loading FA to BP bin Day 4.00 411.00 1644.00for curing / miscellaneous Day 2.00 411.00 822.00

17 Maistry ( 2 x 2 ) Day 4.00 436.00 1744.00Total `: 38946.00







66

Ratein `.




ITEM: Drilling 35 mm diameter grout holes in concrete / rock by percussion drilling using jackhammer or stooper drills as directed to specified depth for consolidation / contact groutingincluding cost of all materials, machinery, labour, ventilation, lighting, drainage, cleaning holes,and all other ancillary operations etc., complete.

DATA:Diameter of hole for consolidation / contact grouting : 32 mmRate of drilling by jack hammer in open area : 8 m / hourThe rate of drilling for consolidation / contact grouting will be slow in view of frequent shifting ofdrilling jumbo / air and water hoses from place to place.Average rate of drilling considering 50 % time for shifting : 4 m / hourConsider 100 m drilling for analysis:Consider 4 jack hammers / stooper drills for drilling grout holes.Hourly progress of drilling with 50 min / hr working ( 4 x 4 x 50 / 60 ) : 13.3 mTime for drilling 100 m ( 100 / 13.3 ) say : 8 hours

1. Requirement of materials :No materials required.

2. Requirement of machinery :Deploy 1 Air compressor 15 cmm for 8 hours with 50 minutes per hour workingDeploy 4 Jack hammers / Stooper drills for 8 hoursDeploy Drilling jumbo for 8 hours.Deploy 10 hp pump for 4 hours for pumping water to storage tank.

3. Requirement of workforce ( other than machinery crew ) :Maistry for marking hole locations and supervision of drilling work : 1 No.Heavy mazdoor for assisting maistry and miscellaneous works : 1 No.

4. Use rate of materials:Cost of jack hammer drill rod 2.5m @ `: 6723.00 / Each `: 6723.00Life of drill rod with reconditioning : 150 mUse rate of drill rod per m drilling ( cost / life ) `: 44.82Cost of air hose 25 m @ `: 204.00 / Rm `: 5100.00Life of air hose : 800 hoursUse rate of air hose per hour ( cost / life ) `: 6.38Cost of water hose 25 m @ `: 188.00 / Rm `: 4700.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 5.88In view of shallow holes and wet drilling regular flushing is not required.


in `.1 Use rate of drill rod 2.5 m long Rm 100.00 44.82 4482.00

Reconditioning charges @ 10% 448.202 Use rate of air hose 4 Nos Hour 32.00 6.38 204.00

Contd

67

in `.QuantityPerticulars Rate



in `.Contd

3 Use rate of water hose 4 Nos Hour 32.00 5.88 188.004 Sundries LS 3.00 45.00 135.00






Fuel / Energy charges Hour 4.00 74.00 296.003 Jack hammer / Stooper drills Hour 32.00 10.00 320.00







in `.1 Crew for Air compressor Hour 8.00 178.00 1424.002 Crew for pump Hour 4.00 82.00 328.003 Crew for Jack hammer Hour 32.00 334.00 10688.004 Crew for Drilling jumbo Hour 8.00 178.00 1424.005 Maistry Day 1.00 436.00 436.006 Heavy mazdoor Day 1.00 411.00 411.00



Description

Description

Perticulars

in `.

in `.

Quantity Rate

Rate

68

Quantity Rate

Quantityin `.



TOTAL `: 40607.70Add for Air and Water line @ 0.90% `: 365.47Add for Ventilation @ 0.00% `: 0.00Add for Lighting @ 1.90% `: 771.55Add for Ele sub-station / Demand charges @ 4.60% `: 1867.95Add for other enabling works @ 1.50% `: 609.12 Total cost for 100.00 Rm `: 44221.79



ITEM: Grouting cement slurry in grout holes under specified pressure for consolidation / contactgrouting including cost of all materials, machinery, labour, ventilation, lighting, drainage, redrilling wherever necessary, and all other ancillary operations etc., complete with lead upto 1 km and all lifts.

DATA:In contact zones, perticularly in crown portion, the grout intake will be heavy due to inadequatepacking of concrete during placement of concrete by placer pump. The average grout intake in the contact zone is considered at 75 kg per metre. Beyond contactzone the grout intake may vary from 25 kg per metre to 50 kg per metre depending on theextent of opening of joints in rock during / after excavation.The average gruot intake for consilidation / contact grouting is considered at 50 kg per metre.The average progress of grouting per shift is considered at 1500 kg. Consider grouting of 1500 kg cement for rate analysis.

1. Requirement of materials :Cement with 1 % wastage ( 1500 x 1.01 ) : 1515 kg

2. Requirement of machinery :Deploy Grout pump with accessories for 8 hours.Deploy Drilling jumbo for 2 hours during grouting of top holes.Deploy 10 hp pump for 2 hours for pumping water to storage tank.

3. Requirement of workforce ( other than machinery crew ) :Maistry for supervision of grouting work : 1 No.Heavy mazdoor for assisting maistry and for miscellaneous works : 1 No.

4. Re-handling lead for materials:As cement store is proposed near batching plant and is to be conveyed inside tunnel for grouting1 km re-handling lead including load and un-loading is considered

5. Use rate of materials:Cost of grout hose 50 m @ `: 204.00 / Rm `: 10200.00Life of grout hose : 800 hoursUse rate of grout hose per hour ( cost / life ) `: 12.75

69


Cost of water hose 50 m @ `: 188.00 / Rm `: 9400.00Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) `: 11.75


in `.1 Cement including 1 % wastage tonne 1.52 5560.00 8451.202 Use rate of grouting hose 50 m Hour 8.00 12.75 102.003 Use rate of water hose 50 m Hour 8.00 11.75 94.004 Sundries LS 1.50 45.00 67.50




in `.1 Grouting machine Hour 8.00 13.00 104.00







in `.1 Crew for Grout pump Hour 8.00 263.00 2104.002 Crew for pump Hour 2.00 82.00 164.003 Crew for Drilling jumbo Hour 2.00 178.00 356.004 Maistry Day 1.00 436.00 436.005 Heavy mazdoor Day 1.00 411.00 411.00



Description

Description

70

Perticulars

in `.

in `. Quantity

Quantity Rate

in `.Quantity Rate

Rate




Total `: 17875.31Add for 1 km rehandling charges :For cement 1.515 tonne @ `: 358.20 / tonne `: 542.67 Total cost for 1.50 tonne `: 18417.98



ITEM: Drilling 75 mm diameter drainage holes vertical or inclined in rock / concrete in tunnel bypercussion drilling method using waggon drill or other suitable drilling equipment including cost of all materials, machinery, labour, ventilation, lighting, drainage etc., complete.

DATA:Generally rate of drilling in rock or concrete inside tunnel will be less compared to drilling inopen area.Rate of drilling by waggon drill in open area : 12 m / hourConsidering about 25 percent reduction in efficiency the hourly progress of drilling by waggon drill will be about 7.5 m considering 50 minutes per hour working.Progress of drilling per shift by one waggon drill is considered at 60 m.For use of 15 cmm compressor 2 waggon drills can be operated.Progress of drilling per shift for 2 waggon drills : 120 mConsider 120 m drilling for rate analysis.

1. Requirement of materials :No materials required.

2. Requirement of machinery :Deploy 1 air compressor 15 cmm for 8 hours for supplying air.Deploy 2 waggon drills for 8 hours for drilling holes.Deploy 10 hp pump for 6 hours for pumping water to storage tank.

3. Requirement of workforce ( other than machinery crew ) :Maistry for marking hole locations and supervision of drilling work : 1 No.Heavy mazdoor for assisting maistry and for miscellaneous works : 1 No.

4. Use rate of materials:Cost of 75 mm dia T.C cross bit @ `: 9940.00 / Each `: 9940.00Life of T.C cross bit 75 mm dia in rock : 80 m Use rate of T.C cross bit per m drilling (cost / life) `: 124.25Cost of 6 m extn rod with sleeve @ `: 4271.00 / Rm `: 25626.00

71


Life of extension rods : 1500 mUse rate of 6 m extn rod per m drilling (cost / life) `: 17.08Cost of air hose 20 m @ `: 204.00 / Rm `: 4080.00Life of air hose : 800 hoursUse rate of air hose 20 m per hour (cost / life) `: 5.10Cost of water hose 20 m @ `: 188.00 `: 3760.00Life of water hose : 800 hoursUse rate of water hose 20 m per hour (cost / life) `: 4.70

RATE ANALYSIS UNIT: 120.00 RmA. MATERIALS: Sl No Unit Amount

in `.1 Use rate of cross bit 75 mm dia Rm 120.00 124.25 14910.002 Use rate of air hose 20 m Hour 16.00 5.10 81.603 Use rate of water hose 20 m Hour 16.00 4.70 75.204 Use rate of extension rods Rm 120.00 17.08 2050.085 Sundries LS 0.50 45.00 22.50




in `.1 Waggon drill Hour 16.00 147.00 2352.00







in `.1 Crew for Waggon drill Hour 16.00 263.00 4208.002 Crew for Air compressor Hour 8.00 178.00 1424.003 Crew for Pump Hour 6.00 82.00 492.004 Maistry Day 1.00 436.00 436.005 Heavy mazdoor Day 1.00 411.00 411.00


Perticulars

Description

Description

in `.

Quantity Rate

Rate

in `. Quantity Rate

in `.

72

Quantity



in `.Contd




TOTAL `: 42171.19Add for Air and Water line @ 0.90% `: 379.54Add for Ventilation @ 0.00% `: 0.00Add for Lighting @ 1.90% `: 801.25Add for Ele sub-station / Demand charges @ 4.60% `: 1939.87Add for other enabling works @ 1.50% `: 632.57 Total cost for 120.00 Rm `: 45924.43


73



ENABLING WORKS

DATA FOR PERCENTAGE PROVISIONS

ANNEXURES

FOR

74


SECTION: TUNNEL AND ALLIED WORKS. YEAR: 2018-19 Annexure-1

ITEM: Data for percentage provisions towards cost of Electric sub-station & Demand charges:

DATA:Estimation of electric power requirement for various equipments :Aggregate crushing plant 1 No. : 30 hpBatching & mixing plant 1 No. : 25 hpVibrators 2 Nos. : 6 hpAir compressor 15 cmm 1 No. : 150 hpAir compressor 8.5 cmm 1 No. : 75 hpWater supply / Dewatering pumps : 50 hpConvey mucker 1 No. : 60 hpVentilation fans : 60 hpFabrication / Repair / Maintenance units : 20 hp

Major electric power consuming equipment is 15 cmm capacity air compressor.Air compressor 15 cmm 1 No. : 150 hpOther equipments running simultaneously:Aggregate crushing plant 1 No. : 30 hpWater supply / Dewatering pumps : 30 hpFabrication / Repair / Maintenance units : 20 hp

Total : 230 hpRequirement of power in Kw ( 230 x 0.746 ) : 171.58 kwAdd for lighting & miscellaneous requirements : 10.00 kwAdd for reserve capacity @ 10 % : 18.42 kw

Total ( say ) : 200.00 kwCapacity of sub-station required ( 200 / 0.85 ) : 250 KVADemand for power requirement is assumed to vary from 250 KVA to 150 KVA duringconstruction period of about 3 years.Average demand for electric power for 3 years is considered @. : : 200 KVAConsider 2 Transformers of 250 KVA including 1 spare unit.

Capital cost of other sub-station equipments & distribution lines: Breakers & accessories( 2 Nos) @ `: 35262.00 / each `: 70524.00Poles with fixtures 30 Nos @ `: 5125.00 / each `: 153750.00HT / LT Line conductor 5 km @ `: 39831.00 / km `: 199155.00Metering and other accessories LS `: 56250.00Controls and Miscellaneous LS `: 56250.00

Total `: 535929.00Life of sub-station equipments : 15 yearsSalvage value : 10 percentAverage capital cost 535929 x ( 15 + 1 ) / 3 `: 285828.80Hire charges of sub-station equipments:Depreciation per year 535929 x 0.9 / 15 `: 32155.74Interest on av. Capital cost @ 9% `: 25724.59Maintenance & repairs @ 25 % of depreciation `: 8038.94Miscellaneous charges @ 10 % of repair charges `: 803.89Insurance charges on av capital cost @ 1% `: 2858.29

Total hire charges / year `: 69581.45

75


Cables & Fittings:PVC cable 70 sqmm 100 m @ `: 229.00 / Rm `: 22900.00PVC cable 25 sqmm 100 m @ `: 140.00 / Rm `: 14000.00PVC cable 16 sqmm 1250 m @ `: 119.00 / Rm `: 148750.00PVC cable 10sqmm/below 2000m @ `: 101.00 / Rm `: 202000.00Miscellaneous fittings LS `: 11250.00

Total `: 398900.00Assume use of cables for 3 years with 50 percent salvage value.Use rate of cables per year with 50 % salvage value `: 66483.33


in `.1 Use rate of cables Year 3.00 66483.33 199450.002 Anchors / supports for cables / lights LS 150.00 45.00 6750.003 Sundries ( tapes & consumeables ) LS 50.00 45.00 2250.00




in `.1 Sub-station equipments Year 3.00 69581.45 208744.352 Transformer 250 KVA 2 Nos. Month 72.00 2301.00 165672.003 Demand charges for 3 years for 200 kVA

@ 85 % PF ( 200 x 3 x 12 x 0.85 ) KVA 6120.00 216.00 1321920.004 Sundries LS 50.00 45.00 2250.00




in `.1 Lineman 2 Nos. x 3 x 12 x 26 days Day 1872.00 421.00 788112.002 Electrician 2 Nos. x 3 x 12 x 26 days Day 1872.00 436.00 816192.003 Heavy mazdoor 2 Nos x 3 x 12 x 26 days Day 1872.00 411.00 769392.00



Description

Description

Perticulars RateQuantityin `.

in `.Rate Quantity

Quantityin `.

76

Rate


D. ENABLING WORKS:Enabling works for electric sub-station include shed for store and DG set / foundations for sub-station equipments / fencing etcCost of enabling works for electric sub-station LS `: 90000.00ABSTRACT:A. Cost of Materials `: 241802.00B. Hire charges of Machinery `: 1932918.53C. Cost of Labour `: 3346911.36D. Enabling works `: 90000.00 Total cost for 1000.00 Rm `: 5611631.89Cost of electric sub-station and distribution lines is chargeable to all items as except transportequipments all other equipments are operated using electric power.Approximate basic cost of 1 km tunnel:Excavation ( Item-3 : 1.8 m / Blast ) : ( 89252.31 x 100 / 1.8 ) `: 49584615.56Concrete( Item-18 : 7.7 cum/ Rm) :( 100 x 323883 x 7.7 / 48 ) `: 51956169.08All other items @ 20 % of excavation and concreting. `: 20308156.93

Total basic cost / km `: 121848941.56Cost of electric sub-station and distribution lines ( excluding energy charges ) as percentage of basic cost of all items:

100 x / : 4.61 say : 4.60


ITEM: Data for percentage provisions towards cost of air and water lines:

DATA:Consider 100 mm dia GI pipe for air line and 80 mm dia GI pipe for water line.For 1 km tunnel consider 1250 m length air line including pipe line from air compressor shedto tunnel / adit portal.For 1 km tunnel consider 1500 m length water line including pipe line from pumping point to starage water tank and from storage water tank to tunnel / adit portal.Air and water lines are extended inside the tunnel as the excavation progresses and are dismantled progressively during concreting. Considering 24 months as the construction period for 1 km tunnel the weighted average use of air and water lines will be for 18 months.

a. Cost of 1250 m 100 mm dia pipe @ `: 747.00 / Rm `: 933750.00Add for fittings / specials / valves etc @ 15% `: 140062.50

Total `: 1073812.50Add for repair / replacements @ 25% `: 268453.13

Total cost of air line `: 1342265.63As the air and water lines are laid in open and are prone to damage due blasting / rock fallsetc., the life of pipes is assumed at 6 years ( 4 uses ) with 20 percent salvage value.Use rate of air line per year ( 0.8 x 1342266 / 6 ) `: 178968.75

b. Cost of 1500 m 80 mm dia pipe @ `: 492.00 / Rm `: 738000.00Add for fittings / specials / valves etc @ 15% `: 110700.00

Total `: 848700.00Add for repair / replacements @ 25% `: 212175.00

Total cost of air line `: 1060875.00Use rate of water line per year ( 0.8 x 1060875 / 6 ) `: 141450.00For laying / maintaining / dismantling air and water lines 1 pipe fitter and 2 heavy mazdoors are assumed for 2 years with 50 percent utilisation for air / water lines.

77

5611632 121848942


RATE ANALYSIS UNIT: 1000.00 Rm tunnelA. MATERIALS: Sl No Unit Amount

in `.1 Use rate of 100 mm dia GI pipe Year 1.50 268453.132 Use rate of 80 mm dia GI pipe Year 1.50 212175.003 Sundries( sealing compound etc ) LS 250.00 45.00 11250.00




in `.1 NIL 0.00 0.00 0.00

0.00 0.00 0.00Total `: 0.00

Add for small Tools and Plants @ 1% `: 0.00Add for Contractor's Profit on DPOL/ Energy @ 10% `: 0.00Add for Contractor's Overheads @ 5% `: 0.00



in `.1 Pipe fitter ( 2 x 12 x 26 x 0.5 x 1 ) Day 312.00 436.00 136032.002 Heavy mazdoor ( 2 x 12 x 26 x 0.5 x 2) Day 624.00 411.00 256464.00


Total cost of Labour : `: 553419.36ABSTRACT:A. Cost of Materials `: 570578.63B. Hire charges of Machinery `: 0.00C. Cost of Labour `: 553419.36

TOTAL `: 1123997.99Cost of air and water lines is chargeable to all items requiring use of water.Approximate basic cost of 1 km tunnel:Excavation ( Item-3 : 1.8 m / Blast ) : ( 89252.31 x 1000 / 1.8 ) `: 49584615.56Concrete(Item-18 : 7.7 cum/Rm):( 1000 x 323883 x 7.7 / 48 ) `: 51956169.08All other items at average 20 % of cost of excavation and concreting. `: 20308156.93

Total basic cost / km `: 121848941.56Cost of air and water lines as percentage of basic cost of all items :

100 x / : 0.92 say : 0.90

in `.

Description

Perticulars

Descriptionin `.

1123998

in `.

Rate Quantity

Quantity Rate

RateQuantity

121848942

78

178968.75141450.00



ITEM: Data for percentage provisions towards cost of ventilation system :

DATA:Length of ventilation duct 0.78 m dia for 1 km length of tunnel : 900 mLength of ventilation duct 0.78 m dia for adit portion assumed : 300 mTotal length of ventilation duct : 1200 mGenerally twin fans of 20 hp each are installed at 300 m interval and are run for about 1 hourafter each blast to clear off blasting fumes and dust.It may also be necessary to run the ventilation fans for short periods during mucking in case use of dumpers deployed for disposal of muck to remove exhaust fumes.Requirement of materials for fabrication of 1200 m duct:Plain GI sheet 1 mm thick Class II @ 22.5 kg per Rm : 27000 kgMS angle 30 x 30 x 4 mm for ring @ 2 kg per Rm : 2400 kgMS flats 50 x 4 mm for supporting pipes @ 2 kg per Rm : 2400 kgRivets for joints @ 0.4 kg per Rm : 480 kgGI bolts and nuts for connecting pipes @ 0.25 kg per Rm : 300 kgShalimastic sealing compound for joints @ 0.2 kg per Rm : 240 kgBinding wire @ 0.2 kg per Rm : 240 kgAnchors ( 2 Nos ) @ 2.5 m interval for supporting duct : 960 NosAnchors ( 4 Nos ) for supporting fans at 300 m interval 16 Nos

Total : 976 Nos20 mm dia 1.2 m long rods for anchors & 2 m long rods for fans : : 3000 kgResin bond cement capsules for fixing anchors : 1000 NosRequirement of machinery :For fabrication of ducts :Bending machine @ 12 pipes of 2.5 m / day ( 1200 x 8 / 12 / 2.5 ) 320 hoursFor conveying and erecting :Tipper @ 6 pipes of 2.5 m / hour ( 1200 / 6 / 2.5 ) 80 hoursDrilling jumbo for fixing @ 30 m / day ( 1200 x 8 / 30 ) 320 hoursFor dismantling and conveying :Tipper @ 50 % of erection hours 40 hoursDrilling jumbo @ 50 % of erection hours 160 hoursDrilling for fixing anchor rods :32 mm dia 1 m deep holes for anchors for duct & fans : 976 mCost of drilling 32 mm dia. hole ( Item 19 ) per Rm `: 442.22

RATE ANALYSIS UNIT: 1200.00 RmFOR COST OF VENTLATION DUCT :A. MATERIALS: Sl No Unit Amount

in `.1 Plain GI sheet kg 27000.00 62.34 1683099.002 MS angle 30 x 30 x 5 mm kg 2400.00 39.55 94912.803 MS flats kg 2400.00 39.55 94912.804 Rivets kg 480.00 95.00 45600.005 GI bolts and nuts kg 300.00 90.00 27000.006 Sundries ( gas / electrodes etc ) LS 100.00 45.00 4500.00


Perticularsin `.RateQuantity

79



in `.Contd





Fuel / Energy charges Hour 320.00 111.00 35520.002 Sundries ( welding / drilling etc ) LS 100.00 45.00 4500.00




in `.1 Fabricator @ 0.1 / Rm Day 120.00 436.00 52320.002 Gas cutter / Welder @ 0.1 / Rm Day 120.00 421.00 50520.003 Helper fabricator @ 0.2 / Rm Day 240.00 421.00 101040.004 Tinsmith @ 0.2 / Rm Day 240.00 436.00 104640.005 Heavy mazdoor @ 0.2 / Rm Day 240.00 411.00 98640.00



ABSTRACT:A. Cost of Materials `: 2262028.54B. Hire charges of Machinery `: 55242.40C. Cost of Labour `: 574095.60 Total cost for 1200.00 Rm `: 2891366.54

FOR ERECTION / DISMANTLING OF DUCT & FANS: A. MATERIALS: UNIT: 1200.00 Rm Sl No Unit Amount

in `.1 Shalimastic sealing compound kg 240.00 131.00 31440.002 20 mm dia steel for anchors kg 3000.00 49.03 147093.00

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80

Quantity Ratein `.

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A. MATERIALS ( Contd ) : UNIT: 1200.00 Rm Sl No Unit Amount

in `.Contd

3 Resin bond cement capsule Nos 1000.00 73.00 73000.004 Binding wire kg 240.00 57.00 13680.005 Sundries LS 50.00 45.00 2250.00

Total `: 267463.00Add for small Tools and Plants @ 1% `: 2674.63Add for Contractor's Profit @ 10% `: 26746.30Add for Contractor's Overheads @ 5% `: 13373.15Add for drilling holes 732 m @ Rs: 442.22 / Rm `: 323703.48




Fuel / Energy charges Hour 480.00 51.00 24480.002 Tipper Hour 120.00 229.00 27480.00





in `.1 For erection of duct & fans:

Crew for Drilling jumbo Hour 320.00 178.00 56960.00Crew for Tipper Hour 80.00 167.00 13360.00Bar bender Day 40.00 436.00 17440.00Erector @ 30 m / day Day 40.00 436.00 17440.00Helper erection Day 80.00 421.00 33680.00Khalasi Day 40.00 436.00 17440.00Heavy mazdoor Day 40.00 411.00 16440.00

2 For dismantling of duct & fans:Crew for Drilling jumbo Hour 160.00 178.00 28480.00Crew for Tipper Hour 40.00 167.00 6680.00Erector @ 60 m / day Day 20.00 436.00 8720.00Helper erection Day 40.00 421.00 16840.00Khalasi Day 20.00 436.00 8720.00Heavy mazdoor Day 20.00 411.00 8220.00


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ABSTRACT FOR COST OF VENTILATION SYSTEM:Cost of ventilation duct 1200 m length `: 2891366.54Deduct salvage value of duct @ 10% ( - ) `: -289136.65

Total `: 2602229.88Use rate of duct per use assuming 2 uses `: 1301114.94Erection & dismantling of duct & fans `: 1237081.16

TOTAL `: 2538196.11Add for maintenance & replacements @ 10% `: 253819.61Total cost of ventilation system for 1000 m tunnel `: 2792015.72Cost of ventilation system / blast of 1.80 m length ( 49 cum ) `: 5025.63 ( excluding hire charges of fans )Entire cost of ventilation system is considered chargeable to excavation item as the requirement of defuming the tunnel for other activities is negligible.Basic cost of excavation per blast ( 49 cum ) as per item-3 `: 89252.31Cost of ventilation system ( excluding hire charges of ventilation fans ) as percentage of basic cost of excavation

100 x 5026 / 89252 : 5.63 say : 5.60


ITEM: Data for percentage provisions towards cost of Lighting :

DATA:Lighting facilities are to be provided inside the tunnel round the clock till completion.Provision of flood lights near work areas and tube lights at other locations is assumed.Fluorescent tube lights are assumed at 30 m interval inside tunnel.Number of tube lights inside tunnel assuming 900 m length requires lighting : 30 Nos.Period of excavation for 1 km @ 1.8 m / day ( 1000 /1.8 ) : 555 daysNumber of hours of use and energy requirement for 555 days during excavation for average 50percent sets utilisation and 24 hours use ( since the lights are installed progressively as thetunnel excavation advances ) :Number of hours of usage ( 0.5 x 30 x 24 x 555 ) : 199800.00Add for lighting on holidays for miscellaneous works @ 10 % : 19980.00

Total : 219780.00

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Energy requirement in Kwhr ( 219780 x 40 / 1000 ) say : 8800.00Period of concreting for 1 km @ 3 m / day ( 1000 / 3 ) 333.00Number of hours of use and energy requirement for 333 days during concreting for 50 percentsets utilisation and 24 hrs use:Number of hours of usage ( 0.50 x 30 x 24 x 333 ) : 119880.00Add for lighting on holidays for miscellaneous works @ 10 % : 11988.00

Total : 131868.00Energy requirement in Kwhr ( 131868 x 40 / 1000 ) say : 5300.00Number of tube lights for approach / BP / Crusher / Material yard etc say : 10 Nos.Number of hours of use and energy requirement for 3 year during night time for 75 percent sets utilisation and 12 hours use:Number of hours of usage ( 0.75 x 10 x 12 x 360 x 3 ) : 97200.00Energy requirement in Kwhr( 0.75 x 20 x 12 x 360 x 3 x 40 / 1000 ) : 3888.00Number of flood lights inside tunnel : 3 Nos.Number of hours of use and energy requirement for 3 year for 100 percent sets utilisation and average 16 hours use daily:Number of hours of usage ( 3 x 16 x 360 x 3 ) : 51840.00Energy requirement in Kwhr ( 3 x 16 x 360 x 3 x 250 / 1000 ) : 12960.00Number of flood lights for BP / Crusher / Switch yards etc say : 4 NosNumber of hours of use and energy requirement for 3 year during night time for 100 percent sets utilisation and 12 hrs use:Number of hours of usage ( 4 x 12 x 360 x 3 ) : 51840.00Energy requirement in Kwhr ( 4 x 12 x 360 x 3 x 250 / 1000 ) : 12960.00Use rate of materials:Flood / Tube light fittings:Flood light sets 7 Nos @ `: 4876.00 / set `: 34132.00Tube light set inside tunnel 30 Nos @ `: 473.00 / set `: 14190.00Tube light set outside tunnel 10 Nos@ `: 473.00 / set `: 4730.00Accessories for light fittings / repairs / replacements etc LS `: 4500.00

Total `: 57552.00Assume use of light fittings for 3 years with 50 percent salvage value.Use rate of light fittings per year with 50 % salvage value `: 9592.00 ( 57552.00 x 0.5 / 3 )Cost of flood lights 250 W @ `: 762.00 / No. `: 762.00Life of flood light in hours : 1500.00Use rate of flood lights per hour ( cost / life ) `: 0.51Cost of tube lights 40 W @ `: 34.00 / No. `: 34.00Life of fluorescent tube light in hours : 1500.00Use rate of tube lights per hour ( cost / life ) `: 0.02Running of 30 KVA DG set with 75 percent utilisation for tunnel lighting is assumed for 2 hours running daily to ensure lighting for tunnel works during break down of main power supply frompower supply grid.Running of DG set for 3 years @ 4 hours daily ( 365 x 3 x 2 x 0.75 ) : 1645 hrs


in `.1 Use rate of flood / tube light sets Year 3.00 9592.00 28776.00

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2 Use rate of flood lights inside tunnel Hour 0.51 26334.72Energy charges Kwhr 12960.00 8.24 106790.40Use rate of flood lights outside tunnel Hour 0.51 26334.72Energy charges Kwhr 12960.00 8.24 106790.40

3 Use rate of tube lights inside tunnel Hour 0.02 7970.69Energy charges Kwhr 14100.00 8.24 116184.00Use rate of tube lights outside tunnel Hour 0.02 2203.20Energy charges Kwhr 3888.00 8.24 32037.12

4 Sundries ( tapes & starter etc ) LS 50.00 45.00 2250.00Total `: 455671.25




in `.1 DG set 30 KVA @ 75 % for lighting Hour 1645.00 44.00 72380.00

Fuel / Energy charges @ 75% for lighting Hour 1645.00 759.00 1248555.002 Sundries LS 50.00 45.00 2250.00




in `.1 Crew for DG set Day 1645.00 134.00 220430.00

( 75 % for tunnel lighting ) 0.00 0.00 0.00Total `: 220430.00




Quantity Ratein `.

Description

QuantityDescription

Perticulars

351648.00

51840.00

in `.

51840.00

in `.Rate

97200.00

Quantity Rate

84


Cost of lighting work area inside and outside tunnel is chargeable to all items.Approximate basic cost of 1 km tunnel as per data in Annexure-1: `: 121848941.56Cost of lighting tunnel including energy charges as percentage of basic cost of all items of work :

100 x / : 1.94 say : 1.90


ITEM: Provision for other Enabling works:

DATA:Stores / work shop / guarage / fuel depot / portable magazine / storage water tanks / water &air supply lines / ventilation / electric sub-station / power supply lines / haul roads / lighting /transportation,erection and dismantling of plant & equipments / sheds for plant and machinery /dewatering etc., are enabling works for tunnel and allied works.

In the data rate analysis provisions to be made for ventilation / electric sub-station / powerlines / air and water lines / lighting are worked out saperately.This data rate is for other enabling works for tunnel and allied works.

1 Cement store 1 week qty 50 sqm @ `: 6750.00 / sqm `: 337500.002 General store 50 sqm @ `: 6750.00 / sqm `: 337500.003 Work shop 50 sqm @ `: 7875.00 / sqm `: 393750.004 Guarage 100 sqm @ `: 5625.00 / sqm `: 562500.005 Sheds for machinery 100 sqm @ `: 5625.00 / sqm `: 562500.006 Fuel depot 25 sqm @ `: 6750.00 / sqm `: 168750.007 Storage water tanks ( 50000 ltr ) @ `: 4500.00 / sqm `: 112500.008 Civil works of BP LS `: 900000.009 Site levelling / field offices etc LS `: 675000.00

10 Local haul roads / rampways LS `: 450000.00 Total `: 4500000.00

Add interest for 1.5 years @ 9% `: 607500.00Add for maintenance for 2 years @ 2.00% `: 90000.00Less salvage value @ 25 % for ( 1 ) to ( 7 ) ( - ) `: -618750.00

Total ( A ) `: 4578750.00

Transportation / Erection / Dismantling of plant & machinery:Drilling equipments / Aggregate crushing system / Batching plant / Transport equipmentsare the major plant & machinery requiring transportation, erection and dismantling services.Transportation, erection and dismantling costs are not considered for aggregate crushing andprocessing system as market rates are considered for aggregates.Capital cost of equipments :

1 Air compressor 15 cmm ( ele ) 1 No `: 7541352 Air compressor 8.5 cmm ( ele ) 1 No `: 4992193 Drilling jumbo 1 No. `: 7202514 Convoy mucker 1 No `: 21960865 Dumpers 2 Nos `: 15055006 Tippers 4 Nos ( exclusive transportation not considered ) `: 07 Jack hammers 6 Nos `: 196578

1218489422367042

85


8 Waggon drills 1 No. `: 5271699 Grouting machine 1 No `: 56099

10 Pumps of various capacity LS `: 67500011 Concrete Placer 1 No. `: 31866213 Pusher leg 6 Nos `: 13645214 Concrete vibrators 40 mm 2 Nos `: 2538015 Guniting equipment 1 No. `: 15089316 Agitator cars 2 Nos `: 256115617 Welding transformer 2 Nos `: 4990218 Ventilation fans 6 Sets `: 55492219 Portable magazine / Explosive van LS `: 157500020 Batching plant with accessories 6 cum / hr `: 96251121 Bending machine 1 No. `: 34503022 D.G.Set 30 kVA 1 No. `: 34434023 Work shop equipments / fuel pump / Misc LS `: 900000

Total `: 15054285Transportation to site for ( 1 ) to ( 23 ) @ 1.50% `: 225814.28Erection cost for ( 20 ) to ( 23 ) @ 6.00% `: 153112.86

Total `: 378927.14Add interest for 1.5 years @ 9% `: 51155.16Add dismantling cost for ( 20 ) to ( 23 ) @ 3.00% `: 76556.43Add transportation from site for ( 1 ) to ( 23 ) 1.50% `: 225814.28

Total ( B ) `: 732453.00Total cost of other enabling works ( A + B ) `: 5311203Approximate basic cost of 1 km tunnel as per data in Annexure-1: `: 121848942Total cost of work assuming above arrangement for 3 km tunnel `: 365546825Cost of other enabling works as percentage of total cost of tunnel:

100 x / : 1.45 say : 1.50


ITEM: Additional rate for mucking through vertical / inclined shaft :

DATA: A . Cost of disposal of muck using convey mucker for loading and dumper for conveying through approach channel / adit.All data same as in Item - 3.


in `.1 NIL 0.00 0.00 0.00

0.00 0.00 0.00Total `: 0.00



Perticulars

5311203

Quantity Rate

365546825

in `.

86



in `.1 Convey mucker Hour 6.00 501.00 3006.00


Fuel / Energy charges Hour 12.00 478.00 5736.00Total `: 15012.00




in `.1 Crew for Convey mucker Hour 6.00 178.00 1068.002 Crew for Dumper Hour 12.00 214.00 2568.003 Khalasi for mucking shift 2 Nos Day 2.00 436.00 872.004 Heavy mazdoor for mucking shift 8 Nos Day 8.00 411.00 3288.00





Rate per cum `: 645.50

B. Cost of disposal of muck using convey mucker for loading and loco with tipping tub forconveying through vertical / inclined shaft.All data same as in Item - 3 except mode of disposal of muck.Winch and tipping tubs are considered for mucking through shaft.Movement of tubs on the rail track can be by manual labour or by deploying loco.Use of diesel loco inside tunnel and manual haulage outside tunnel assumed.Quantity of muck to be disposed per blast ( Item - 3 ) : 73 cumCycle time for disposal of muck by winch :Aligning & hooking tub : 0.50 min

Description

Descriptionin `.Rate

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87


Lifting by winch @ 15 m / minute for 75 m : 5.00 minDehooking & aligning loaded tub on outside track : 1.00 munHooking / Lowering / Dehooking / aligning empty tub on inside track : : 5.50 min

say : 12.00 minQuantity of muck per tipping tub : 1.50 cumTime require for mucking 73 cum ( 73 x 12 / 1.50 / 60 ) say : 10 hoursDeploy loco & 8 mucking tubs for 10 hours.Deploy winch for 12 hours including use for movement of work force.Quantity of rails for haulage of tubs : Main track inside tunnel : 2 x 1000 m

Siding near shaft : 2 x 50 mSiding near excavation face : : 2 x 50 mHaulage track outside : 2 x 150 mTotal length of rails : 2500 m

Weigth of 30R rails 2500 m length @ 30 kg / Rm : 75 tonnesCost of 30 R rails 2500 m @ `: 47458.00 / tonne `: 3559350.00Add for fixtures @ 25% `: 889837.50

Total `: 4449187.50Life of rails under tunnel working conditions : 15 yearsUse rate of rails per year with 10 % salvage value `: 266951.25Add for repairs & replacement @ 10 % `: 26695.13

Total `: 293646.38Use rate of rails per shift considering 300 working days `: 978.82Consider use of loco track for 12 hours.Length of 16 mm dia wire rope for winch assuming 75 m deep shaft : : 100 mCost of wire rope 150 m ( 160 kg ) @ `: 163.00 / kg `: 26080.00Life of wire rope for lifting : 2500 hoursUse rate of wire rope per hour ( cost / life ) `: 10.43


in `.1 Use rate of rails ( for 12 hours ) Shift 1.50 978.82 1468.232 Use rate of wire rope for winch Hour 12.00 10.43 125.183 Sundries LS 2.00 45.00 90.00




in `.1 Loco 45 hp Hour 10.00 161.00 1610.00

Fuel / Energy charges Hour 10.00 640.00 6400.002 35 hp Winch Hour 12.00 67.00 804.00


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3 Mucking tub 1.5 cum Hour 80.00 21.00 1680.00Fuel / Energy charges Hour 80.00 12.00 960.00

4 Sundries LS 2.00 45.00 90.00Total `: 14640.00




in `.1 Crew for loco Hour 10.00 167.00 1670.002 Crew for Winch Hour 12.00 267.00 3204.003 Foreman Day 2.00 436.00 872.004 Khalasi

for mucking Day 4.00 436.00 1744.005 Heavy mazdoor

for mucking Day 12.00 411.00 4932.00for hauling & unloading outside Day 8.00 411.00 3288.00for signalling & miscellaneous Day 8.00 411.00 3288.00

Total `: 18998.00Add for small Tools and Plants @ 1% `: 189.98Add for Contractor's Profit @ 10% `: 1899.80Add for hidden cost on Labour @ 15% `: 2849.70Add for additional hidden cost on labour @ 10% `: 1899.80Add for Contractor's Overheads @ 5% `: 949.90Add for laying & dismantling loco track @ 15% `: 2849.70




Rate per cum `: 1125.50Additional cost for mucking through shaft per cum ( A - B ) `: 480.00Basic rate for excavation / cum for use of dumpers ( Item-3 ) `: 2085.59Extra rate as percentage of basic rate for mucking through shaft : 23.02%

say : 23.00%

in `.Description Quantity

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89

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