Data Rates-Dam Works-Part 7

8/13/2019 Data Rates-Dam Works-Part 7

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SECTION: DAM AND ALLIED WORKS. YEAR : 2010-11 ITEM No: 40

ITEM: Providing and constructing contraction joints by fixing 230 mm wide central bulb type PVCwater stop in single line supported by 10 mm dia steel dowel rods on either side at 1 metreinterval including cost of all materials, machinery, labour, valcunising joints etc., complete withall leads and lifts.

DATA: Consider 1.5 x 2.1 m size gallery contraction joint for analysis.Length of contraction joint at water seal location : 8.70 mLapping and vulcanizing considered for joining PVC water stoppers.Consider 8.7 m length of contraction joint for rate analysis.

1. Requirement of materials :PVC water seal 230 mm wide : 9.00 m10 mm dia ribbed steel rods : 10 kg

2. Requirement of machinery :No machinery is required.

3. Requirement of workforce ( other than machinery crew ) :Barbender for preparing dowel bars : 0.25 NoWelder for vulconizing PVC water stoppers. : 0.5 NoMason Class-I : 0.5 NoHeavy mazdoor for handling materials : 0.5 No.

RATE ANALYSIS UNIT : 8.70 RmA. MATERIALS: Sl No Unit Amount

in Rs.1 PVC water seal 230 mm wide Rm 9.00 168.00 1512.002 Reinforcement steel 10 mm dia kg 10.00 36.20 362.003 Vulcanising materials LS 2.00 30.00 60.00

Total Rs: 1934.00 Add for small Tools and Plants @ 1% Rs: 19.34 Add for Contractor's Profit @ 10% Rs: 193.40 Add for Contractor's Overheads @ 5% Rs: 96.70

Total cost of Materials : Rs: 2243.44

B. MACHINERY: Sl No Unit Amount

in Rs.1 Sundries such as heater etc., LS 0.50 30.00 15.00 Fuel charges for heating LS 0.50 30.00 15.00

Total Rs: 30.00 Add for small Tools and Plants @ 1% Rs: 0.30

Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 1.50 Add for Contractor's Overheads @ 5% Rs: 1.50Total hire charges of Machinery : Rs: 33.30

Perticulars

Descriptionin Rs.

Quantity Rate

Quantity Ratein Rs.

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C. LABOUR: Sl No Unit Amount

in Rs.1 Welder Day 0.50 157.50 78.752 Bar bender Day 0.25 159.00 39.753 Mason Class-I Day 0.50 159.00 79.504 Heavy mazdoor Day 0.50 132.00 66.00

Total Rs: 264.00 Add for small Tools and Plants @ 1% Rs: 2.64 Add for Contractor's Profit @ 10% Rs: 26.40 Add for hidden cost on Labour @ 15% Rs: 39.60 Add for additional hidden cost on labour @ 5% Rs: 13.20 Add for Contractor's Overheads @ 5% Rs: 13.20

Total cost of Labour : Rs: 359.04

ABSTRACT: A. Cost of Materials Rs: 2243.44B. Hire charges of Machinery Rs: 33.30C. Cost of Labour Rs: 359.04

2635.78 Add for enabling works @ 1.40% Rs: 36.90 Total cost for 8.70 Rm Rs: 2672.68

Rate per Rm Rs: 307.00Rate approved per Rm Rs: 307.00


ITEM: Providing hearting embankment using selected impervious soil from approved borrowareas in layers of 250 to 300 mm before compaction including cost of all materials, machinery,labour, all other operations such as excavation, sorting out, transportation, spreading soil inlayer of specified thickness, breaking clods, sectioning, watering, compacting to densitycontrol of not less than 95 percent using power roller etc., complete with initial lead upto1 km and all lifts.

DATA: Capacity of shovel bucket : 0.85 cumCapacity of shovel bucket under heaped condition : 0.98 cumCapacity of tipper : 5.00 cumLead for conveyance of soil : Upto 1 kmSpeed for loaded tipper under haul road condition : 20 km / hr Speed for empty tipper under haul road condition : 25 km / hr Turning and unloading time : 2.00 minShovel digging and loading cycle per bucket : 20 sec

1. Quantity of embankment :In-situ quantity per bucket for 15 % bulkage of soil ( 1 / 1.15 ) : 0.86 cumIn-situ quantity per load for 20 % bulkage of soil ( 5.00 / 1.2 ) : 4.17 cumNumber of buckets per load ( 4.17 / 0.86 ) say : 5 buckets

Quantity of in-situ soil per load ( 5 x 0.86 ) say : 4.30 cumIdeal cycle time for loading 5 buckets ( 5 x 20 / 60 ) say : 1.67 minThe ideal cycle time for shovel requires spotting of tipper within 1.67 minutes near the shovel.

Description

TOTAL Rs:

Quantity Ratein Rs.

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However, in practice, the space available on either side of the shovel may not permit freemovement of the tippers quickly. Some times one loaded tipper has to move after loading toposition next tipper for loading. Assuming one extra cycle for shovel the corrected cycle timefor the shovel will be 2.00 minutes.Round trip cycle time for tipper:Cycle time of shovel for digging & loading : 2.00 minutesTime for 1km haulage under load ( 60 / 20 ) : 3.00 minutesTime for turning and un-loading : 2.00 minutesTime for 1 km return trip ( 60 / 25 ) : 2.40 minutesTime for turning and spotting : 0.50 minutes

Total : 9.90 minutesNo. of tippers to match corrected cycle time of shovel ( 9.90 / 2 ) : 5 NosOutput of tipper / hr with 50 min working / hr ( 50 x 4.30 / 9.90 ) say : 21.70 cumOutput for 5 tippers per day ( 5 x 21.70 x 8 ) say : 870 cumThe in-situ dry density of soil in borrow area will be generally less than dry density of compactedembankment. Therefore, the rolled embankment quantity will be slightly less than the borrowarea in-situ quantity. The extent of shrinkage in quantity depends on the degree of compaction.For 95 % density control of embankment a shrinkage factor of 5 % may be assumed.Quantity of embankment considering 5 %shrinkage ( 870 x 0.95 ) say : 825 cumQty of soil for computing royalty charges @ 1.6 t / cum ( 825x1.6 ) : 1320 tonnes

Consider 825 cum rolled hearting embankment for rate analysis.2. Stripping of borrow area :

Generally borrow area is stripped once in a week for 6 days requirement of soil. Area to be stripped assuming 2.0 m depth of cut ( 870 x 6 / 2.0 ) : 2610 sqmDepth of stripping : 0.25 mQty of stripping considering 5 % extra area ( 2610 x 1.05 x 0.25 ) : 685 cumOutput of dozer per hr with 50 min / hr working for stripping : 100 cumTime required for stripping 685 cum ( 685 / 100 ) : 6.85 hoursConsider 8 hours including time for levelling stripped siol / shifting time.For stripping borrow area for 1 day requirement of soil ( 8 / 6 ) : 1.30 hoursDeploy dozer for 1.3 hours for stripping borrow area for 825 cum embankment work.

3. Collection of soil for embankment:Deploy one 0.85 cum capacity shovel for 8 hours for digging and loading soil.Deploy 5 tippers of 5.00 cum capacity for 8 hours to convey soil to embankment area.

4. Spreading soil in 250 to 300 mm layer:Quantity of loose soil to be spread ( 870 x 1.20 ) : 1044 cumOutput of dozer for levelling per hour : 250 cumTime required for levelling 1044 cum ( 1044 / 250 ) say : 4.20 hoursDeploy dozer for 4.2 hours for spreading and levelling soil for 825 cum embankment work.

5. Watering;Generally soil in borrow area will be in moist condition. In the beginning of the season nowatering may be necessary and in summer months about 8 to 10 percent watering may beneeded to maintain the soil moisture within OMC plus or minus 3 percent limit. Assumingseasonal average of 4 to 5 percent watering by weight, daily requirement of water for 825 cumof embankment will be about 8 tanker loads of 8000 ltrs each.Deploy 8000 ltr capacity water tanker for 8 hours daily for watering before rolling.Deploy 5 hp pump for 4 hours.

6. Compaction:Soil collected for embankment layer gets compacted to some extent during levelling by dozer.

Generally 8 to 10 passes of vibratory pad foot roller may be necessary to achieve density

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control of over 95 percent.Effective length of roller drum : 1.90 mSpeed of roller per hour : 4.0 kmThickness of layer : 0.3 m

Average number of roller passes to achieve specified density control : 9 NosOutput of roller / hr with 50 min /hr working and 75 % effenciancy

( 1.9 x 4000 x 0.3 x 0.75 / 9 ) x 50 / 60 say : 160 cumTime for rolling 1044 cum soil in embankment layer ( 1044 / 160 ) say : 6.50 hoursDeploy vibratory padfoot roller for 6.5 hours for compacting soil for 825 cum embankment work.

7. Sorting out / sectioning / labour for testing etc :Deploy 2 heavy and 2 light mazdoors.Deploy 1 maistry at borrow area and 1 maistry at embankment area.

RATE ANALYSIS UNIT : 825.00 cumA. MATERIALS: Sl No Unit Amount

in Rs.1 NIL 0.00 0.00 0.00

0.00 0.00 0.00Total Rs: 0.00

Add for small Tools and Plants @ 1% Rs: 0.00 Add for Contractor's Profit @ 10% Rs: 0.00 Add for Contractor's Overheads @ 5% Rs: 0.00 Add royalty charges for 1320 t soil @ Rs: 10.00 / tonne Rs: 13200.00



in Rs.1 Angle dozer 90 hp Hour 5.50 1154.00 6347.00

Fuel / Energy charges Hour 5.50 423.00 2326.502 Shovel 0.85 cum capacity Hour 8.00 1199.00 9592.00

Fuel / Energy charges Hour 8.00 605.00 4840.003 Tippers 5.00 cum capacity 5 Nos. Hour 40.00 271.00 10840.00

Fuel / Energy charges Hour 40.00 208.00 8320.004 Pump 5 hp ( ele ) Hour 4.00 3.00 12.00

Fuel / Energy charges Hour 4.00 25.00 100.005 Water tanker 8000 ltr Hour 8.00 268.00 2144.00

Fuel / Energy charges Hour 8.00 208.00 1664.006 Vibratory pad foot roller 8 tonne Hour 6.50 1130.00 7345.00

Fuel / Energy charges Hour 6.50 715.00 4647.507 Sundries LS 2.00 30.00 60.00

Total Rs: 58238.00 Add for small Tools and Plants @ 1% Rs: 582.38 Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 2195.80 Add for Contractor's Overheads @ 5% Rs: 2911.90

Total hire charges of Machinery : Rs: 63928.08


Description

Description

Perticulars

in Rs.

Quantity Rate

Quantity Rate

Quantity Ratein Rs.

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in Rs.1 Crew for Dozer Hour 5.50 77.50 426.252 Crew for Shovel Hour 8.00 77.50 620.003 Crew for Tipper Hour 40.00 56.70 2268.004 Crew for Pump Hour 4.00 26.90 107.605 Crew for Water tanker Hour 8.00 56.70 453.606 Crew for Roller Hour 6.50 90.60 588.907 Maistry Day 2.00 141.50 283.008 Heavy mazdoor Day 2.00 132.00 264.009 Light mazdoor Day 2.00 130.50 261.00



ABSTRACT: A. Cost of Materials including royalty charges Rs: 13200.00

B. Hire charges of Machinery Rs: 63928.08C. Cost of Labour Rs: 7170.40

84298.48 Add for enabling works @ 1.40% Rs: 1180.18 Total cost for 825.00 cum Rs: 85478.65

Rate per cum Rs: 104.00Rate approved per cum Rs: 104.00


ITEM: Providing cut-off trench filling using selected impervious soil from approved borrowareas in layers of 250 to 300 mm before compaction including cost of all materials, machinery,labour, all other operations such as excavation, sorting out, transportation, spreading soil tospecified thickness, breaking clods, sectioning, watering, compacting to density control of notless than 95 percent using power roller etc., complete with initial lead upto 1 km and all lifts.


1. Quantity of embankment :In-situ quantity per bucket for 15 % bulkage of soil ( 1 / 1.15 ) : 0.86 cumIn-situ quantity per load for 20 % bulkage of soil ( 5.00 / 1.2 ) : 4.17 cum

Number of buckets per load ( 4.17 / 0.86 ) say : 5 buckets

Quantity of in-situ soil per load ( 5 x 0.86 ) say : 4.30 cumIdeal cycle time for loading 5 buckets ( 5 x 20 / 60 ) say : 1.67 minThe ideal cycle time for shovel requires spotting of tipper within 1.67 minutes near the shovel.

in Rs.

TOTAL Rs:

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However, in practice, the space available on either side of the shovel may not permit freemovement of the tippers quickly. Some times one loaded tipper has to move after loading toposition next tipper for loading. Assuming one extra cycle for shovel the corrected cycle timefor the shovel will be 2.00 minutes.Round trip cycle time for tipper:Cycle time of shovel for digging & loading : 2.00 minutesTime for 1km haulage under load ( 60 / 20 ) : 3.00 minutesTime for turning and un-loading : 2.00 minutesTime for 1 km return trip ( 60 / 25 ) : 2.40 minutesTime for turning and spotting : 0.50 minutes

Total : 9.90 minutesIn view of restricted width of cut-off trench limiting free movement of tippers and also due tomovement of tippers for longer distance in reverse direction compared to open area, timerequired for collection of soil will be more. For collection of soil in cut-off trench about 20 percentmay be assumed per trip of tipper.Corrected cycle time of tipper per trip ( 9.90 x 1.20 ) say : 11.90 minutesNo. of tippers to match corrected cycle time of shovel ( 11.90 / 2 ) say : 6 NosOutput of tipper / hr with 50 min working / hr ( 50 x 4.30 / 11.90 ) say : 18.10 cumOutput for 6 tippers per day ( 6 x 18.10 x 8 ) say : 869 cumThe in-situ dry density of soil in borrow area will be generally less than dry density of compacted

embankment. Therefore, the rolled embankment quantity will be slightly less than the borrowarea in-situ quantity. The extent of shrinkage in quantity depends on the degree of compaction.For 95 % density control of embankment a shrinkage factor of 5 % may be assumed.Quantity of embankment considering 5 %shrinkage ( 869 x 0.95 ) say : 825 cumQty of soil for computing royalty charges @ 1.6 t / cum ( 825x1.6 ) : 1320 tonnesConsider 825 cum cut-off trench filling for rate analysis.

2. Stripping of borrow area :Data same as in item No. 41 since the quantity of embankment is same.Deploy dozer for 1.3 hours for stripping borrow area for 825 cum embankment work.


4. Spreading soil in 250 to 300 mm layer:Data same as in item No. 41 since the quantity of embankment is same.Deploy dozer for 4.2 hours for spreading and levelling soil for 825 cum embankment work.

5. Watering;Data same as in item No. 41 since the quantity of embankment is same.Deploy 8000 ltr capacity water tanker for 8 hours daily for watering before rolling.Deploy 5 hp pump for 4 hours.

6. Compaction:Data same as in item No. 41 since the quantity of embankment is same.Deploy vibratory padfoot roller for 6.5 hours for compacting soil for 825 cum embankment work.



in Rs.Perticulars Quantity Rate

in Rs.

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1 NIL 0.00 0.00 0.00 0.00 0.00 0.00

Total Rs: 0.00 Add for small Tools and Plants @ 1% Rs: 0.00 Add for Contractor's Profit @ 10% Rs: 0.00 Add for Contractor's Overheads @ 5% Rs: 0.00 Add royalty charges for 1320 t soil @ Rs: 10.00 / tonne Rs: 13200.00







Fuel / Energy charges Hour 4.00 25.00 100.00

5 Water tanker 8000 ltr Hour 8.00 268.00 2144.00Fuel / Energy charges Hour 8.00 208.00 1664.00

6 Vibratory pad foot roller 8 tonne Hour 6.50 1130.00 7345.00Fuel / Energy charges Hour 6.50 715.00 4647.50

7 Sundries LS 2.00 30.00 60.00Total Rs: 62070.00

Add for small Tools and Plants @ 1% Rs: 620.70 Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 2362.20 Add for Contractor's Overheads @ 5% Rs: 3103.50




Total Rs: 5725.95 Add for small Tools and Plants @ 1% Rs: 57.26

C o n t d

C. LABOUR ( Contd ) : Sl No Unit Amount

in Rs.C o n t d

Add for Contractor's Profit @ 10% Rs: 572.60

in Rs.Description Quantity Rate

Description

Description

in Rs.

Quantity Ratein Rs.

Quantity Rate

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Add for hidden cost on Labour @ 15% Rs: 858.89 Add for additional hidden cost on labour @ 5% Rs: 286.30 Add for Contractor's Overheads @ 5% Rs: 286.30


ABSTRACT: A. Cost of Materials including royalty charges Rs: 13200.00B. Hire charges of Machinery Rs: 68156.40C. Cost of Labour Rs: 7787.29




ITEM: Providing casing embankment using semi-pervious soil from approved borrow areas inlayers of 250 to 300 mm before compaction including cost of all materials, machinery, labour,all other operations such as excavation, sorting out, transportation, spreading soil in layers of

specified thickness, breaking clods, sectioning, watering, compacting to density control of not less than 95 percent using power roller etc., complete with initial lead upto 1 km andall lifts.


1. Quantity of embankment :In-situ quantity per bucket for 15 % bulkage of soil ( 1 / 1.15 ) : 0.86 cumIn-situ quantity per load for 20 % bulkage of soil ( 5.00 / 1.2 ) : 4.17 cumNumber of buckets per load ( 4.17 / 0.86 ) say : 5 bucketsQuantity of in-situ soil per load ( 5 x 0.86 ) say : 4.30 cumIdeal cycle time for loading 5 buckets ( 5 x 25 / 60 ) say : 2.08 minThe ideal cycle time for shovel requires spotting of a tipper within 2.08 minutes near the shovel.However, in practice, the space available on either side of the shovel may not permit freemovement of the tippers quickly. Some times one loaded tipper has to move after loading toposition next tipper for loading. Assuming one extra cycle for shovel the corrected cycle timefor the shovel will be 2.50 minutes.Round trip cycle time for tipper:Cycle time of shovel for digging & loading : 2.50 min

Time for 1km haulage under load ( 60 / 20 ) : 3.00 minTime for turning and un-loading : 2.00 minTime for 1 km return trip ( 60 / 25 ) : 2.40 minTime for turning and spotting : 0.50 min

Total : 10.40 minNo.of tippers to match corrected cycle time of shovel ( 10.4 / 2.5 ) say : 4 Nos

TOTAL Rs:

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Output of tipper / hr with 50 min working / hr ( 50 x 4.30 / 10.40 ) say : 20.70 cumOutput for 4 tippers per day ( 4 x 20.70 x 8 ) say : 662 cumThe in-situ dry density of soil in borrow area will be generally less than dry density of compactedembankment. Therefore, the rolled embankment quantity will be slightly less than the borrowarea in-situ quantity. The extent of shrinkage in quantity depends on the degree of compaction.For 95 % density control of embankment a shrinkage factor of 5 % may be assumed.Quantity of embankment considering 5 %shrinkage ( 662 x 0.95 ) say : 630 cumQty of soil for computing royalty charges @ 1.6 t / cum ( 630x1.6 ) : 1008 tonnesConsider 630 cum rolled casing embankment for rate analysis.

2. Stripping of borrow area : Generally borrow area is stripped once in a week for 6 days requirement of soil.

Area to be stripped assuming 2.0 m depth of cut ( 662 x 6 / 2.0 ) : 1986 sqmDepth of stripping : 0.25 mQty of stripping considering 5 % extra area ( 1986 x 1.05 x 0.25 ) : 521 cumOutput of dozer per hr with 50 min / hr working for stripping : 1 00 cumTime required for stripping 521 cum ( 521 / 100 ) : 5.2 hoursConsider 6 hours including time for levelling stripped siol / shifting time.For stripping borrow area for 1 day requirement of soil ( 6 / 6 ) : 1.00 hoursDeploy dozer for 1.0 hours for stripping borrow area for 630 cum embankment work.

3. Collection of soil for embankment:

Deploy one 0.85 cum capacity shovel for 8 hours for digging and loading soil.Deploy 4 tippers of 5.00 cum capacity for 8 hours to convey soil to embankment area.


5. Watering;Generally soil in borrow area will be in moist condition. In the beginning of the season nowatering may be necessary and in summer months about 8 to 10 percent watering may beneeded to maintain soil moisture within OMC plus or minus 3 percent limit. Assuming seasonalaverage of 4 to 5 percent watering by weight, daily requirement of water for 630 cum of embankment will be about 6 tanker loads of 8000 ltrs each.Deploy 8000 ltr capacity water tanker for 6 hours daily for watering before rolling.Deploy 5 hp pump for 3 hours.

6. Compaction:Soil collected for embankment layer gets compacted to some extent during levelling.Generally 8 to 10 passes of vibratory pad foot roller may be necessary to achieve densitycontrol of over 95 percent.Effective length of roller drum : 1.90 mSpeed of roller per hour : 4.0 kmThickness of layer : 0.3 m

Average number of roller passes to achieve specified density control : 9 Nos

Output of roller / hr with 50 min / hr working and 75 % effenciancy( 1.9 x 4000 x 0.3 x 0.75 / 9 ) x 50 / 60 say : 160 cum

Time for rolling 795 cum soil in embankment layer ( 795 / 160 ) say : 5.00 hoursDeploy vibratory padfoot roller for 5.0 hours for compacting soil for 630 cum embankment work.


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in Rs.1 NIL 0.00 0.00 0.00

0.00 0.00 0.00Total Rs: 0.00





Fuel / Energy charges Hour 4.20 423.00 1776.602 Shovel 0.85 cum Hour 8.00 1199.00 9592.00

Fuel / Energy charges Hour 8.00 605.00 4840.003 Tipper 5 cum Hour 32.00 271.00 8672.00








in Rs.1 Crew for Dozer Hour 4.20 77.50 325.502 Crew for Shovel Hour 8.00 77.50 620.003 Crew for Tipper Hour 32.00 56.70 1814.40

C o n t d

C. LABOUR ( Contd ) : Sl No Unit Amount

in Rs.C o n t d

4 Crew for Pump Hour 3.00 26.90 80.705 Crew for Water tanker Hour 6.00 56.70 340.206 Crew for Roller Hour 5.00 90.60 453.007 Maistry Day 2.00 141.50 283.00

Description Quantity Rate

Descriptionin Rs.

Description

Perticulars

Quantity Ratein Rs.

in Rs.

Quantity Rate

Quantity Ratein Rs.

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8 Heavy mazdoor Day 2.00 132.00 264.009 Light mazdoor Day 2.00 130.50 261.00







ITEM: Providing casing embankment using semi-pervious soil available from excavation inlayers of 250 to 300 mm before compaction including cost of all materials, machinery, labour,all other operations such as re-excavation, sorting out, transportation, spreading in layers ofspecified thickness, breaking clods, sectioning, watering, compacting to density control of notless than 95 percent using power roller etc., complete with initial lead upto 1 km and all lifts.

DATA: Capacity of shovel bucket : 0.85 cumCapacity of shovel bucket under heaped condition : 0.98 cumCapacity of tipper : 5.00 cumLead for conveyance of soil : Upto 1 kmSpeed for loaded tipper under haul road condition : 20 km / hr Speed for empty tipper under haul road condition : 25 km / hr Turning and unloading time : 2.00 minDigging soil in dump area will be relatively faster compared to digging in borrow area in view of loose condition of soil. However, the loading cycle time remains same whether the soil is fromborrow area or from dump area. Therefore, for use of dump area soil for embankment a combineddigging and loading cycle time at 65 percent of borrow area may be considered.Shovel digging and loading cycle per bucket for soil in borrow area : 25 secShovel digging and loading cycle/ bucket in dump area ( 25 x 0.65 ) : 16 sec

1. Quantity of embankment :In-situ quantity / bucket for 10 % bulkage of soil ( 1 / 1.10 ) : 0.90 cumIn-situ quantity / load for 10 % bulkage of soil ( 5.00 / 1.10 ) : 4.50 cumNumber of buckets per load ( 4.50 / 0.90 ) say : 5 bucketsQuantity of in-situ ( dumped )soil per load ( 5 x 0.90 ) say : 4.50 cumIdeal cycle time for loading 5 buckets ( 5 x 16 / 60 ) say : 1.33 minThe ideal cycle time for shovel requires spotting of tipper within 1.33 minutes near the shovel.However, in practice, the space available on either side of the shovel may not permit freemovement of the tippers quickly. Some times one loaded tipper has to move after loading to

TOTAL Rs:

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position next tipper for loading. Assuming one extra cycle for shovel the corrected cycle timefor the shovel will be 1.60 minutes.Round trip cycle time for tipper:Cycle time of shovel for digging & loading : 1.60 minutesTime for 1km haulage under load ( 60 / 20 ) : 3.00 minutesTime for turning and un-loading : 2.00 minutesTime for 1 km return trip ( 60 / 25 ) : 2.40 minutesTime for turning and spotting : 0.50 minutes

Total : 9.50 minutesNo.of tippers to match corrected cycle time of shovel ( 9.50 / 1.60 ) say : 6 NosOutput of tipper / hr with 50 min working / hr ( 50 x 4.50 / 9.50 ) say : 23.70 cumOutput for 6 tippers per day ( 6 x 23.70 x 8 ) say : 1137 cumThe output worked out above is the insitu quantity in dump area with 10 % bulkage factor.The in-situ dry density of soil in borrow area will be generally less than dry density of compactedembankment. Therefore, the rolled embankment quantity will be slightly less than the borrowarea in-situ quantity. The extent of shrinkage in quantity depends on the degree of compactionof embankment. For 95 % density control of embankment a shrinkage factor of 5 % is assumedfor use of borrow area soil.Further, as the insitu density of soil in dump area will be less compared to natural ground dueto bulkage of soil in dump area, for applying the shrinkage foctor the insitu dump area quantity

may be converted to equivalent insitu borrow area quantity by applying the bulkage factor.Equivalent borrow area quantity for 10% bulkage ( 1137 / 1.1 ) : 1034 cumQty of compacted embankment for 5 % shrinkage ( 1034 x 0.95 ) : 982 cumQty of soil for computing royalty charges @ 1.6 t /cum ( 982 x 1.6 ) : 1571 tonnesConsider 982 cum rolled casing embankment for rate analysis.

2. Stripping of borrow area : As the soil is from dump area no stripping of top soil involved.



5. Watering;Generally soil in borrow area will be in moist condition. In the beginning of the season nowatering may be necessary and in summer months about 8 to 10 percent watering may beneeded to maintain soil moisture within OMC plus or minus 3 percent limit. Assuming seasonalaverage of 4 to 5 percent watering by weight, daily requirement of water for 982 cum of embankment will be about 9 tanker loads of 8000 ltrs each.

Deploy 8000 ltr capacity water tanker for 9 hours daily for watering before rolling.

Deploy 5 hp pump for 4.5 hours.6. Compaction:Soil collected for embankment layer gets compacted to some extent during levelling.Generally 8 to 10 passes of vibratory pad foot roller may be necessary to achieve densitycontrol of over 95 percent.Effective length of roller drum : 1.90 mSpeed of roller per hour : 4.0 kmThickness of layer : 0.3 m

Average number of roller passes to achieve specified density control : 9 Nos

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Output of roller / hr with 50 min / hr working and 75 % effenciancy( 1.9 x 4000 x 0.3 x 0.75 / 9 ) x 50 / 60 say : 160 cum

Time for rolling 1250 cum soil in embankment layer ( 1250 / 160 ) say : 7.80 hoursDeploy vibratory padfoot roller for 7.8 hours for compacting soil for 982 cum embankment work.

7. Sorting out / sectioning / labour for testing etc :Deploy 2 heavy and 2 light mazdoors.Deploy 1 maistry at embankment area.


in Rs.1 NIL 0.00 0.00 0.00

0.00 0.00 0.00Total Rs: 0.00











Total Rs: 64170.00C o n t d

B. MACHINERY ( Contd ) : Sl No Unit Amount

in Rs.C o n t d Add for small Tools and Plants @ 1% Rs: 641.70 Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 2456.05 Add for Contractor's Overheads @ 5% Rs: 3208.50


C. LABOUR: Sl No Unit AmountDescription

in Rs.

in Rs.

Quantity Rate

Quantity

Perticulars

Description

Description

Quantity Rate

Rate

Quantity Ratein Rs.

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ABSTRACT: A. Cost of Materials including royalty charges Rs: 15710.00

B. Hire charges of Machinery Rs: 70476.25C. Cost of Labour Rs: 7797.74




ITEM: Providing homogeneous embankment using soil from approved borrow area in layers of 250 to 300 mm before compaction including cost of all materials, machinery, labour, all other operations such as excavation, sorting out, transportation, spreading soil in layer of specifiedthickness, breaking clods, sectioning, watering, compacting to density control of not lessthan 95 percent or as stipulated by power roller etc., complete with initial lead upto 1 kmand all lifts.

DATA: Capacity of shovel bucket : 0.85 cumCapacity of shovel bucket under heaped condition : 0.98 cum

Capacity of tipper : 5.00 cumLead for conveyance of soil : Upto 1 kmSpeed for loaded tipper under haul road condition : 20 km / hr

Speed for empty tipper under haul road condition : 25 km / hr Turning and unloading time : 2.00 minShovel digging and loading cycle per bucket : 22 sec

1. Quantity of embankment :In-situ quantity per bucket for 15 % bulkage of soil ( 1 / 1.15 ) : 0.86 cumIn-situ quantity per load for 20 % bulkage of soil ( 5.00 / 1.2 ) : 4.17 cumNumber of buckets per load ( 4.17 / 0.86 ) say : 5 bucketsQuantity of in-situ soil per load ( 5 x 0.86 ) say : 4.30 cumIdeal cycle time for loading 5 buckets ( 5 x 22 / 60 ) say : 1.83 min

TOTAL Rs:

in Rs.

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The ideal cycle time for shovel requires spotting of tipper within 1.83 minutes near the shovel.However, in practice, the space available on either side of the shovel may not permit freemovement of the tippers quickly. Some times one loaded tipper has to move after loading toposition next tipper for loading. Assuming one extra cycle for shovel the corrected cycle timefor the shovel will be 2.20 minutes.Round trip cycle time for tipper:Cycle time of shovel for digging & loading : 2.20 minutesTime for 1km haulage under load ( 60 / 20 ) : 3.00 minutesTime for turning and un-loading : 2.00 minutesTime for 1 km return trip ( 60 / 25 ) : 2.40 minutesTime for turning and spotting : 0.50 minutes

Total : 10.10 minutesNo. of tippers to match corrected cycle time of shovel ( 10.10 / 2 ) say : 5 NosOutput of tipper / hr with 50 min working / hr ( 50 x 4.30 / 10.10 ) say : 21.30 cumOutput for 5 tippers per day ( 5 x 21.30 x 8 ) say : 852 cumThe in-situ dry density of soil in borrow area will be generally less than dry density of compactedembankment. Therefore, the rolled embankment quantity will be slightly less than the borrowarea in-situ quantity. The extent of shrinkage in quantity depends on the degree of compaction.For 95 % density control of embankment a shrinkage factor of 5 % may be assumed.Quantity of embankment considering 5 %shrinkage ( 852 x 0.95 ) say : 810 cum

Qty of soil for computing royalty charges @ 1.6 t / cum ( 810x1.6 ) : 1296 tonnesConsider 810 cum rolled homogeneous embankment for rate analysis.

2. Stripping of borrow area : Generally borrow area is stripped once in a week for 6 days requirement of soil.

Area to be stripped assuming 2.0 m depth of cut ( 852 x 6 / 2.0 ) : 2556 sqmDepth of stripping : 0.25 mQty of stripping considering 5 % extra area ( 2556 x 1.05 x 0.25 ) : 671 cumOutput of dozer per hr with 50 min / hr working for stripping : 100 cumTime required for stripping 671 cum ( 671 / 100 ) : 6.70 hoursConsider 8 hours including time for levelling stripped soil / shifting time.For stripping borrow area for 1 day requirement of soil ( 8 / 6 ) : 1.30 hoursDeploy dozer for 1.3 hours for stripping borrow area for 810 cum embankment work.


4. Spreading soil in 250 to 300 mm layer:Quantity of loose soil to be spread ( 852 x 1.20 ) : 1022 cumOutput of dozer for levelling per hour : 250 cum

Time required for levelling 1022 cum ( 1022 / 250 ) say : 4.10 hoursDeploy dozer for 4.1 hours for spreading and levelling soil for 810 cum embankment work.

5. Watering;Generally soil in borrow area will be in moist condition. In the beginning of the season no

watering may be necessary and in summer months about 8 to 10 percent watering may beneeded to maintain the soil moisture within OMC plus or minus 3 percent limit. Assumingseasonal average of 4 to 5 percent watering by weight, daily requirement of water for 810 cumof embankment will be about 7 tanker loads of 8000 ltrs each.Deploy 8000 ltr capacity water tanker for 7 hours daily for watering before rolling.Deploy 5 hp pump for 3.5 hours.

6. Compaction:Soil collected for embankment layer gets compacted to some extent during levelling.Generally 8 to 10 passes of vibratory pad foot roller may be necessary to achieve density

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control of over 95 percent.Effective length of roller drum : 1.90 mSpeed of roller per hour : 4.0 kmThickness of layer : 0.3 m

Average number of roller passes to achieve specified density control : 9 NosOutput of roller / hr with 50 min /hr working and 75 % effenciancy

( 1.9 x 4000 x 0.3 x 0.75 / 9 ) x 50 / 60 say : 160 cumTime for rolling 1022 cum soil in embankment layer ( 1022 / 160 ) say : 6.40 hoursDeploy vibratory padfoot roller for 6.4 hours for compacting soil for 810 cum embankment work.



in Rs.1 NIL 0.00 0.00 0.00

0.00 0.00 0.00Total Rs: 0.00







Fuel / Energy charges Hour 40.00 208.00 8320.00C o n t d

B. MACHINERY ( Contd ) : Sl No Unit Amount

in Rs.C o n t d

4 Pump 5 hp ( ele ) Hour 3.50 3.00 10.50

Fuel / Energy charges Hour 3.50 25.00 87.505 Water tanker 8000 ltr Hour 7.00 268.00 1876.00Fuel / Energy charges Hour 7.00 208.00 1456.00

6 Vibratory pad foot roller 8 tonne Hour 6.40 1130.00 7232.00Fuel / Energy charges Hour 6.40 715.00 4576.00

7 Sundries LS 2.00 30.00 60.00Total Rs: 57405.80

Add for small Tools and Plants @ 1% Rs: 574.06 Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 2162.37

in Rs.Description Quantity Rate

Perticulars

Quantity Rate

Quantity

Descriptionin Rs.

Ratein Rs.

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Add for Contractor's Overheads @ 5% Rs: 2870.29Total hire charges of Machinery : Rs: 63012.52



Total Rs: 5185.39 Add for small Tools and Plants @ 1% Rs: 51.85 Add for Contractor's Profit @ 10% Rs: 518.54 Add for hidden cost on Labour @ 15% Rs: 777.81 Add for additional hidden cost on labour @ 5% Rs: 259.27

Add for Contractor's Overheads @ 5% Rs: 259.27Total cost of Labour : Rs: 7052.13





ITEM: Providing embankment adjacent to masonry / concrete structures and filling trial pits

using impervious soil from approved borrow areas in layers of 100 to 150 mm andcompacting each layer to density control of not less than 95 percent using vibrating platecompactors or by pnuematic tampers including cost of all materials, machinery, labour,picking previous layer, spreading soil in layer, breaking clods, watering etc., complete withinitial lead upto 1 km and all lifts.

DATA: For woks like back filling trial pits in embankment area and around key blocks where it may notbe possible to use dozer and roller for spreading and compaction of soil. Similarly, dozer androller are, generally, not permitted for spreading and rolling soil adjacent to masonry / concretestructures to avoid possible damage to structures. In such locations, spreading soil by manuallabour and compaction by pnuematic tamper or vibrating plate compactor is adopted.For purpose of rate analysis manual spreading and compaction by vibrating plate compactor isconsidered.Thickness of loose layer : 15 cmSpecified density control of compacted fill : 95 percent

Description

TOTAL Rs:

Quantity Ratein Rs.

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Rated output of vibrating plate compactor per hour : 100 -110 sqmConsider average rated output of 105 sqm / hour for analysis.Practical output of vibrating plate compactor per day with 50 min / hour working and 70 percent

job / management efficiency ( 105 x 8 x 0.70 x 50 / 60 ) : 490 sqm Approximate thickness of layer after compaction : 12 cm

Quantity of compacted fill per day ( 490 x 0.12 ) : 59.00 cumQty of soil for computing royalty charges @ 1.6 t / cum ( 59 x1.6 ) : 94 tonnesConsider 50 cum compacted fill for rate analysis.In-situ dry density of soil in borrow area will be generally less than dry density of embankmentcompacted to more than 95 percent density control. Considering shrinkage factor of 5 percentand bulkage of 20 percent the quantity of loose soil for conveyance will be :Insitu quantity of soil in borrow area ( 59 / 0.95 ) say : 62.10 cumQuantity of loose soil for spreading ( 62.1 x 1.20 ) : 74.50 cumRequirement of machinery based on data in item-41:Dozer for stripping borrow area ( 59 x 1.30 / 825 ) say : 0.10 hour Shovel for digging & loading ( 59 x 8 / 825 ) say : 0.60 hour Tippers for conveyance of soil ( 59 x 40 / 825 ) say : 3.00 hoursWater tanker for watering ( 59 x 8 / 825 ) say : 0.60 hour Pump 5 hp for pumping water ( 59 x 4 / 825 ) say : 0.30 hour Deploy diesel engine operated vibrating plate compactor : 8.00 hours

Requirement of labour for spreading 74.5 cum soil in about 150 mm thick loose layers:Heavy mazdoor for spreading soil in 150 mm layers. : 4 NosLight mazdoor for watering and other miscellaneous works : 1 No.Maistry : 0.5 No.


in Rs.1 NIL Hour 0.00 0.00 0.00

0.00 0.00 0.00Total Rs: 0.00

Add for small Tools and Plants @ 1% Rs: 0.00 Add for Contractor's Profit @ 10% Rs: 0.00

C o n t d

A. MATERIALS ( Contd ) : Sl No Unit Amount

in Rs.C o n t d

Add for Contractor's Overheads @ 5% Rs: 0.00 Add royalty charges for 94 t soil @ Rs: 10.00 / tonne Rs: 940.00






in Rs.Perticulars Quantity Rate

Perticulars

Descriptionin Rs.

Quantity Rate

Quantity Ratein Rs.

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Fuel / Energy charges Hour 0.60 208.00 124.806 Vibrating plate compactor Hour 8.00 55.00 440.00





in Rs.1 Crew for Dozer Hour 0.10 77.50 7.752 Crew for Shovel Hour 0.60 77.50 46.503 Crew for Tipper Hour 3.00 56.70 170.10

4 Crew for Pump Hour 0.30 26.90 8.075 Crew for Water tanker Hour 0.60 56.70 34.026 Crew for Compactor Hour 8.00 89.50 716.007 Maistry Day 0.50 141.50 70.758 Heavy mazdoor Day 4.00 132.00 528.009 Light mazdoor Day 1.00 130.50 130.50





Rate per cum Rs: 129.00

Rate approved per cum Rs: 129.00


ITEM: Providing and constructing rockfill embankment with 300 mm down graded stones andquarry spalls from approved source including cost of all materials, machinery, labour, spreadingstones and spalls in layers, hand packing, wedging, finishing the surface to required slopesetc., complete with initial lead upto 1 km and all lifts.

Description

TOTAL Rs:

Quantity Ratein Rs.

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DATA: Capacity of shovel bucket : 0.85 cumCapacity of shovel bucket under heaped condition : 1.00 cumCapacity of dumper : 5.00 cuminitial lead considered for analysis : 1.00 kmSpeed for loaded tipper under haul road condition : 15 km / hr Speed for empty tipper under haul road condition : 20 km / hr Turning and unloading time : 2.00 minShovel digging and loading cycle per bucket : 50 secNumber of buckets per load ( 5.00 / 1.00 ) say : 5 bucketsIdeal cycle time for loading 5 buckets ( 5 x 50 / 60 ) : 4.17 minThe ideal cycle time for shovel requires spotting of a dumper within 4.17 minutes near theshovel. However, in practice the space available at quarry may not permit positioning of tipperfor loading on either side of shovel. Generally one tipper has to move after loading to positionthe next tipper for loading. Assuming one extra cycle for shovel, the corrected cycle timefor the shovel will be : ( 4.17 + 50 / 60 ) : 5.00 minRound trip cycle time for tipper:Ideal cycle time of shovel for digging & loading : 5.00 minTime for 1km haulage under load ( 60 / 15 ) : 4.00 minTime for turning and un-loading( considering slow movement on rockfill ) : 2.50 minTime for 1 km return trip ( 60 / 20 ) : 3.00 min

Time for turning and spotting : 0.50 minTotal : 15.00 min

No.of tippers to match corrected cycle time of shovel ( 15.0 / 5 ) : 3 NosOutput of tipper / hr with 50 min working / hr ( 50 x 5.00 / 15.00 ) : 16.67 cumOutput for 3 tippers per day ( 3 x 16.67 x 8 ) say : 400 cumThe bulkage of graded rockfill material for conveyance is assumed at about 40 to 45 percent.Considering av. 42.5 % bulkage, insitu qty will be ( 400 / 1.425 ) say : 281 cumConsider 2 % wastage of rock in handling.Insitu quantity of rock available for rock f il l layer ( 281 x 0.98 ) say : 276 cum

Assume 30 % voids in graded dozer levelled and hand packed rockfill.Quantity of rockfill in layer ( 276 / 0.70 ) say : 394 cumQuantity of rock for royalty charges @ 1.85 t / cum ( 394 x 1.85 ) : 729 tonnes

Consider 394 cum rock fill embankment for rate analysis.1. Removal of overburden :

Consider average 1 m depth of overburden material consisting of soil and soft rockConsider 9 m depth of cut on hard rock in benches of 2.25 m.

Area of overburden for 281 cum insitu rock ( 281 / 9 ) say : 32 sqmQuantity of overburden soil / soft rock for 32 sqm ( 32 x 1 ) : 32 cumConsider removal of overburden by manual labour.Consider output of 1 heavy and 1 light mazdoor @ 4 cum / day.

2. Drilling and Blasting :

As the density of rockfill is dependant on gradation the drilling and blasting operations at quarryshall be planned properly to produce graded material.For 300 mm down size rockfill consider 32 mm dia jack hammer drilling.For good fragmentation consider burden at 25 times dia of hole say : 0.80 mConsider spacing at 1.25 times burden : 1.00 mGrid spacing of holes in m : 0.80 x 1.00 mDepth of hole ( generally not less than twice the burden ) : 2.40 mEffective depth of hole ( 2.40 - 0.15 ) : 2.25 m

Area of excavation for 281 cum ( 281 / 2.25 ) : 125.00 sqm

Data Rates-Dam Works-Part 7

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Transcript of Data Rates-Dam Works-Part 7