GOVERNMENT OF INDIA MINISTRY OF RAILWAYS - Indian...

For official use only

GOVERNMENT OF INDIA MINISTRY OF RAILWAYS

Monitoring Report of Bridges

On

Operation of BOXN Wagons Loaded up to CC+8+2t/ CC+6+2t

As Pilot Project on Identified Routes

Report No. BS-85

May, 2007

BRIDGE & STRUCTURES DIRECTORATE

RESEARCH DESIGNS AND STANDARDS ORGANISATION

LUCKNOW – 226011

FOREWORD

This report is based on the information provided by Zonal Railways and analysis conducted by RDSO. The analysis has been supplemented with information sent by Zonal Railways regarding instrumentation being carried out by them as part of Pilot Project. Although every care has been taken in recording data accurately, and in analyzing it objectively, the views expressed in this report are subject to modification from time to time in the light of fresh data. Further, they do not necessarily represent the views of Ministry of Railways (Railway Board), Government of India.

This report is the property of RDSO and is meant essentially for official use. It may not be loaned, reproduced in part or full, or quoted as an authority without the permission of Director General, RDSO.

(S.C.Jain) Director/B&S

RDSO

(Piyush Agarwal) Executive Director/B&S

RDSO

ACKNOWLEDGEMENTS

We wish to acknowledge valuable guidance received in preparation of the report on pilot project from Shri S.K.Vij, Member Engineering and Shri Rakesh Chopra, Additional Member/Civil Engineering. We also wish to place on record inspiration and guidance received from Director General/RDSO in the course of monitoring during pilot project and analysis of the information. The contributions from Shri V.K.Govil, ED/CE/B&S/Railway Board towards setting up the monitoring actions related to the pilot projects as well as discussions on various related issues are thankfully acknowledged.

We wish to particularly thank CBE’s of all Zonal Railways and their team of officers in providing timely inputs in formats circulated by RDSO for monitoring of the effects of running of CC+8+2T and CC+6+2T.

********

INDEX

S.No. Description Page No.

1. Introduction 1

2. Precautions and Monitoring 1-3

3. Tasks Assigned to B&S Directorate of RDSO 3

4. Activities done by B&S Directorate RDSO in connection with Heavy Axle Load

3-4

5. Railway wise analysis 5-36

6. Instrumentation of Bridges 36-46

7. Conclusions 46-48

8. Recommendations 48-49

9. Annexure-1 to 4 50-59

Monitoring Report on Operation of BOXN Wagons Loaded up to CC+8+2t/ CC+6+2t as Pilot Project on Identified Routes

1. Introduction

1.1 In order to enhance throughput to meet traffic demands of the nation, Railway Board had permitted operation of BOXN wagons, loaded up to CC+8+2 (axle load of 22.82t) on identified iron ore routes as a pilot project for a period of one year vide Railway Board letter no. 2003/CE-II/TS/5 Vol.1 dated 02-05-05 and 04-05-05. Later the currency of pilot project has been extended up to June 07 vide CRB’s DO letter No. 2005/CE-II/TS/7 dated 04-05-06 to DG/RDSO. Initially 16 routes were approved by Railway Board in May 05. Later on additional routes were also included for such operation and till March 07, total 34 routes were approved for operation of CC+8+2t as listed in Annexure 1.

1.2 To achieve further augmentation in throughput, Railway Board also decided to permit operation of BOXN wagons loaded up to CC+6+2t (axle load of 22.32t) on identified routes, vide their letter no. 2004/CE-II/TS/2/Vol. I dated 02-02-06 as a pilot project. 100 routes have been approved for this operation till March 07, list of which is placed in Annexure 2.

1.3 Various terminologies used about loading of wagons are correlated as below:

S.No. Terminology Axle load in tons Remarks

1. CC 20.32 Carrying Capacity

2. CC+2+2 21.32 2t permitted over load. 2t loading tolerance

3. CC+4+2 21.82 4t permitted over load, 2t loading tolerance

4. CC+6+2 22.32 6t permitted over load, 2 loading tolerance

5. CC+8+2 22.82 8t permitted over load, 2t loading tolerance

2. Precautions and Monitoring

2.1 Following precautions and Monitoring of bridges have been prescribed for the operations of CC+8+2T load as per Railway Board letter no. 2003/CE-II/TS/5 Vol.1 dated 02-05-05 and 04-05-05 and 2005/CE-I/BR-II/6 dated 13-06-2005.The precautions and monitoring prescribed for CC+6+2 T are similar to those prescribed for CC+8+2 T axle load.

2.1.1 Each bridge needs to be evaluated as an individual entity regarding safety vis-à-vis its physical condition.

(a) Thorough physical inspection as per performa in bridge inspection register

shall be done for each bridge, at the start of pilot project.

(b) Bridges found distressed, shall be sanctioned for rehabilitation immediately and taken up.

(c) Bridges shall be analyzed for the expected loading and where required, rehabilitation/strengthening be got sanctioned and taken up.

(d) The speed restrictions as required from safety consideration shall be imposed.

2.1.2 Bridge load monitoring system has been developed and demonstrated by M/s. Sharma Associates, Chicago, USA. Each Zonal Railway should install one of the systems to monitor the load spectrum including dynamic augment coming on the bridges.

2.1.3 Sample Bridges (representing type and span of those available on the routes) and vulnerable bridges, shall be selected for instrumentation, for monitoring the effects of increased longitudinal loads and higher axle loads on the bridge components i.e. foundations, piers and abutments, bearings and super structure. Instrumentation shall be with respect to measurement of settlement of foundations, tilting of piers/abutments, loads on bearings, deflections and stresses at critical points. Change in dynamic parameters may be monitored for quick evaluation. NDT tests may be carried out periodically.

2.1.4 The recording of data and analysis thereof would be required to be done for longer period so as to provide realistic data for future for allowing higher axle loads.

(a) The tests for longitudinal loads on bearings and proportion transferred to approaches be done initially and further tests as may be required after analysis of results of tests.

(b) The test for deflection/ tilts & stresses at most critical points be done initially and repeated quarterly for one year and thereafter annually for three years or as otherwise required after study of test results.

(c) Tests for Dynamic Characteristics i.e. Vibration Signature test for the bridge be repeated once a quarter for one year & then annually.

(d) Load spectrum analysis including dynamic augment shall require continuous record. These system may be got installed with recording over a quarter by agency and thereafter Railway personnel could get trained & take over recording.

(e) NDT tests be carried out once in six months for detection of any hidden defects/ cracks development.

2.1.5 Quarterly review of the position by multi-disciplinary core group comprising of PHOD’s under GM of Zonal Railways.

3. Tasks assigned to B&S Directorate of RDSO

The fixing of instrumentation, recording of observations and report preparation shall be done through specialized agencies by Zonal Railways. RDSO shall associate from the beginning in the instrumentation scheme, analysis of results and report preparation.

4. Activities done by B & S Directorate RDSO in connection with Heavy Axle Load:

4.1 RDSO has issued guidelines for instrumentation of bridges vide letter no. CBS/Axle load dated 17-01-07.

4.2 Guidelines for running of CC+8+2 T and CC+6+2 T Axle Load:

RDSO has issued guidelines for running of CC+8+2 T and CC+6+2 T Axle Load operation vide letter no. CBS/Golden/Q/Strength dated 20-03-07.

Salient features of guidelines:

(A) RDSO has checked the superstructure of standard spans (6.1m, 9.15m, 12.2m, 18.3m, 24.4m, 30.5m, 45.7m, 61.0m and 76.2m all clear spans) of bridges for 60kmph speed for CC+6+2 T and CC+8+2 T axle load and found that Superstructure of all standard spans designed to BGML loading standard, RBG loading standard and MBG loading standard are fit for 60kmph speed. (Suitability of Superstructure of standard spans has been checked for height of C.G. of wagon from rail level not exceeding 1830mm).

(B) RDSO has checked the bearings of standard spans of bridges for CC+6+2 T and CC+8+2 T axle load and observations are as below:

(a) Bearings of standard spans designed for MBG loadings are fit for running of CC+6+2 T and CC+8+2 T axle load BOXN wagon with coupled WDG4 or coupled WAG9 locomotives.

(b) In case, the bearings designed for BGML/RBG loading standards have been replaced in accordance with RDSO letter of even no. dated 30-12-2004, summarized in annexure 3, then bearings are fit for running of CC+6+2 T and CC+8+2 T axle load BOXN wagon.

(c) In case, the bearings designed for BGML/RBG loading standards have not been replaced in accordance with RDSO letter of even no. dated 30-12-2004 summarized in annexure 3, then Zonal Railways either replace existing bearings as indicated above or strengthen

the bearings as per Annexure-3 for restricted speed of 60 kmph.

(d) RDSO has further examined the bearings of standard spans of BGML and RBG standard for limiting tractive effort of 30t per loco. It is found that two additional anchor bolts are to be provided on fixed end bearings of 76.2m spans of BGML standard. The bearings of all other standard spans are found safe for 25t Axle Load operations with coupled WDG4 and WAG9 with limiting tractive effort of 30t per loco.

4.3 RDSO has issued guidelines for running of 25 t Axle Load operation vide letter no. CBS/Golden/Q/Strength dated 08-08-07 and 24/25-08-07.

4.4 Rationalization of Provisions of EUDL in Bridge Rules:

Presently EUDL approach is being used for design of new bridges as well as checking of suitability of existing bridges. However, there is a need to adopt more rationalized approach for checking the suitability of existing bridges, based on Bending Moment and Shear Force calculated for actual train load.

Accordingly, RDSO has developed software “Moving Load” for working out the maximum Bending Moment and Shear Force which is under final stage of validation.

4.5 Revision of Speed Certificates:

RDSO undertook oscillation trials, controllability trials and coupler force trials for the wagons/ trains with enhanced loading. The issue of provisional Speed Certificate for trials, scrutiny of the trial reports and issue of Final Speed Certificates was undertaken on war footing and in all more than 55 Speed Certificates were issued for enhanced loading. This involved concerted efforts of B&S Directorate, Testing, Wagon, Motive Power, Track and Track Machine Directorates of RDSO. The list of Speed Certificate issued from RDSO for effecting increase in through put is enclosed in Annexure-4.

5. Railway wise analysis:

5.1 Central Railway:

5.1.1 There are 13 nominated routes for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.

Name of route nominated for

CC+6+2T

Total No. of

bridges

Total No. of

Important bridges

Total No. of Major Bridges

Total No. of Minor Bridges

Total No. of Arch Bridges

Total No. of Steel Bridges

Total No. of RCC/

PSC bridges

Total No of bridges nominated

for instrumen

tation

Whether CC+8+2T

/ CC+6+2T operation

started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2T

1 Rajur-Wani-Majri-CTPS

149 5 4 140 12 16 65 Yes

2 Rajur-Wani-Majri-WR-BD-BSL-NKRD

1294 11 127 1156 454 155 296 Yes

3 Ghugus-Tadali-CTPS

48 0 0 48 10 2 7 Yes

4 Ghudus-Tadali-WR-BD-BSL-NKRD

55 2 0 53 5 4 17 5 Yes

5 Godhani-AMF-Ghoradongri-Sarani

716 2 46 668 195 25 337 Yes

6 Parasia-Junnerdeo-Amla-GDYA-SARNI

394 2 11 381 210 12 124 Yes

7 Ghugus-Chandrapur*

Yes

8 Godhani-Wardha 199 3 17 179 98 21 17 Yes

9 Ballarshah-Chandrapur

44 0 8 36 5 9 23 Yes

10 Roha-Panvel-Diva-Vasai-Khandwa-BSL

801 3 98 700 146 84 282 No

11 ET-Ghoradongri 188 2 22 164 72 8 62 Yes

12 NKRD-Kalyan 546 9 17 520 222 45 94 1 No

13 Wadi to NGSM via PA (incl Saswad)

1725 67 113 1605 695 184 505 No

There is no early steel girder bridge on these routes.

5.1.2 Instrumentation of bridges:

(i) 6 bridge have been planned for instrumentation for CC+6+2 T.

(ii) Tender for instrumentation of one bridge finalized and for remaining 5 bridges it is under finalization.

(iii) Instrumentation is yet to start.

5.1.3 Inspection of bridges:

As per the details submitted by core committee of Zonal Railways comprising Principal Chief Engineer, number of bridges inspected during Jan –March 07 is as below:

(a) Important bridges 23

(b) Major bridges 190

(c) Arch bridges 1064

(d) Others 1185

Number of bridges inspected during Oct. –Dec.06 is as below:




(d) Others 93

Number of bridges inspected during July – Sep. 06 is as below



(c) Arch bridges 37

(d) Others 10

5.1.4 Effect of running of CC+8+2 T/ CC+6+2 T:

(i) No adverse effect has been noticed on the bridges.

5.1.5 Details of bridges planned for replacement/rehabilitation:

In CC+6+2 T Routes, works of Rs. 0.75 crores (for 2 bridges) for strengthening of bridges have been sanctioned. Works costing Rs. 6.25 crores (for 34 bridges) for strengthening of bridges have been proposed for sanction.

5.2 East Cost Railway:

5.2.1 There are 6 nominated routes for CC+8+2t and 10 nominated routes for CC+6+ 2t axle loads. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.

Name of route nominated

Total No. of

bridges

Total No. of

Important bridges





Total No. of RCC/

PSC bridges

Total No of bridges

nominated for

instrumentation

Whether CC+8+2T

/ CC+6+2T operation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 Waltair-Kirandul Section (KK line)

1466 1 100 1365 85 41 631 4 15.5.05

2 Daitari-Jakhapura-Paradeep

864 5 48 811 33 26 297 4 15.5.05

3 Sambalpur-Titlagarh-Rayagada-Vizianagaram-Vishakhapatnam

2098 6 120 1972 72 118 1345 1 15.5.05

4 Jharsuguda-Sambalpur

79 1 10 68 11 25 8 06.02.06

5 Koraput-Rayagada

415 0 75 340 75 0 339 1 09..5.06

6 Bhadrak-Jakhapura

195 4 35 156 20 4 109 15.5.05

CC+6+2 T

1 Talcher-Rajathgarh-Barang-Viziangaram-Simhachalam-Vijiyawada (Upto Simhachalam)

2702 7 206 2489 110 327 1549 15.5.05

2 Talcher-Rourkela (Upto Jharsuguda)

485 1 51 433 16 25 251 15.5.05

3 Talcher-Rajathgarh-Nergundi-Paradeep

923 3 56 864 22 27 170 15.5.05

4 Talcher-Rajathgarh-Barang-Vizianagaram-Simhadri

2702 7 206 2489 110 327 1549 15.5.05

5 Talcher-KANIHA (NTPC) 13 0 10 3 7 0 4 06.02.06

6 Tacher-TTPS 4 0 0 4 0 0 2 06.02.06

7 Tacher-Angul 37 0 3 34 2 0 10 06.02.06

8 Vizianagaram-Rayagada-Koraput-Jagdalpur

1559 0 126 1433 111 32 1034 15.5.05

9 Salegaon-Kapilas-Bhadrak 386 4 49 333 31 17 213 15.5.05

10 Raipur-Titlagarh-Vizianagaram 1666 2 74 1590 57 83 890 30.11.06

There are 2 early steel girder bridges on these routes.

Bridge no. 391 (15 x 45.7 m) has speed restriction of 20 kmph for loaded goods and 35 kmph for passenger trains. Work of replacement sanctioned. 2 girders reached at site and balance girders are under fabrication at Manmad Engineering Workshop.

Bridge no. 58 has no speed restriction. Work of replacement sanctioned. Girders are awaited from Engineering Workshop Arakonam.


(i) 10 number of bridges have been planned for instrumentation. First round of instrumentation has been done for all 10 bridges.

(ii) The report of instrumentation for four bridges i.e. 1554 UP, 467, 449 and 544 has been received.

(iii) Observations of RDSO on Instrumentation:

(A) Bridge number 1554 UP (PSA-VKSP Section, 5x30.5m open web girder):

(a) Deflection has been found with in permissible limit.

(b) Stresses in the super structure are well with in the permissible limit.

(c) Only 22T longitudinal force is coming on the bearing against the theoretical requirement of 73.3 T.

(d) The remaining fatigue life of the bridge has been assessed as 59 years.

(e) Tilt of the pier and settlement of pier has not been measured by Zonal Railway

(B) Bridge number 449 UP (BHC-PSA Section, 29x45.72m open web girder):



(c) 56.44T and 60.14 T longitudinal force is coming on the bearing against the theoretical requirement of 88 T for double headed WAG7 locomotive and 81 t for double headed WDG2 locomotive respectively.

(d) Tilt of the pier is insignificant.

(e) The instrumentation of bridge has been done without taking the brake binding cases.

(f) Fatigue life of bridge and settlement of pier has not been measured by Zonal Railway

(C) Bridge number 467 UP (BHC-PSA Section, 2x24.4m plate girder):



(c) Maximum tractive effort at engine level is 48 T; bearing level is 40.64 T for 2WDG7 (with brake binding) and 43.2 T for 2WDG3A (without brake binding). The theoretical tractive effort for 24.4m span for 2WAG7 is 66 T and for 2WDG3A is 60.8 T.

(d) Fatigue life of bridge, tilt and settlement of pier has not been measured by Zonal Railway

(D)Bridge number 544 (BHC-PSA Section, 64x30.48m plate girder):



(c) 59.36 T to 61.36 T tractive efforts has been measured at bearing level against the theoretical requirement of 73.3 T for 2WAG 7 locomotive and 74.3T for 2WDG 2 locomotive. Longitudinal force at engine level has not been measured.

(d) Tilt of the pier is insignificant.

(e) Fatigue life of bridge and settlement of pier has not been measured by Zonal Railway


As per the details submitted by core committee of Zonal Railways comprising Principal Chief Engineer, number of bridges inspected during Jan- Mar 07 is as below:




(d) Others 1662





(d) Others 856

Number of bridges inspected during July – Sep. 06 is as below:



(c) Arch bridges 27

(d) Others 396




In CC+8+2 T Routes, works for Rs. 29.88 crores (for 31 bridges) and in CC+6+2 T Routes works for Rs. 34.97 crores (for 138 bridges) for strengthening of bridges are being planned.

5.3 East Central Railway:

5.3.1 There is no nominated route for CC+8+2t and 12 nominated routes for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.


Total No. of

bridges

Total No. of

Important bridges





Total No. of RCC/

PSC bridges

Total No of

bridges nominated for

instrumentation

Whether CC+8+2T

/ CC+6+2T operation

started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2T

1 Pradhankhunta - Manpur -

Mughalsarai (GC) 1097 3 74 1020 434 43 480 4 May'06

2 Sonenagar - Garhwa Rd. (BD)

414 Nil 28 386 78 16 294 1 No

3 Gomoh – Garhwa Rd.

729 1 50 679 273 7 48 2 May'06

4 Garhwa Rd. - Chopan

400 -- 48 352 201 -- 91 -- May'06

5 Chopan - Mahadiya

120 -- 10 110 75 -- 30 -- May'06

6 Karaila Rd. - Shaktinagar

73 -- 8 65 36 -- 20 -- May'06

7 Dhanbad - Katrasgarh-

Chandrapura 53 -- 7 46 25 -- 1 -- May'06

8 Chadrapura - Dugda

30 -- 2 28 19 -- 2 -- May'06

9 Chandrapura - Rajabera

15 -- 1 14 2 -- 5 -- May'06

10 Pradhankhunta - Patherdih

38 -- 4 34 19 -- 2 -- May'06

11 Katrashgarh - Nichitpur

9 -- -- 9 5 -- -- -- May'06

12 Kusunda - Tetulmari

10 -- -- 10 9 -- -- -- May'06

There are 5 early steel girder bridges.


(i) 7 number of bridges have been planned for instrumentation.

(ii) Agency for instrumentation of 3 bridges fixed by Zonal Railways. And for remaining 4 bridges tender has bee invited by Zonal Railways.

(iii) Instrumentation is yet to start by Zonal Railways.






(d) Others 1522




(c) Arch bridges 32


(i) No adverse effect has been noticed on bridges.


Works for strengthening of bridges are being planned for 275 bridges. Cost of works is yet to be worked out by Zonal Railway.

5.4 Eastern Railway:

5.4.1 There are 3 nominated routes for CC+8+2 T and 9 nominated routes for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.


Total No. of

bridges

Total No. of

Important bridges

Total No. of Major

Bridges




Total No. of RCC/

PSC bridges

Total No of bridges

nominated for

instrumentation

Whether CC+8+2T / CC+6+2T operation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1

Damodar-Kalipahari-Baktarnagar-Durgapur Steel Exchange yard_ Durgapur Steel Plant.

78 Nil 6 72 46 3 18

Nil

May 2005

2 Damodar - Burnpur - Asansol - Kalipahari - Dugapur

128 Nil 12 116 71 2 37 4

3 Durgapur - Barddhaman (slow lines)

198 Nil 7 191 65 5 59 Nil

CC+6+2T

1 Pirpainti - Farakka 153 2 34 119 90 22 41 Nil May 2005

2 Pirpainti - Kahalgaon 39 Nil 11 28 32 2 6 Nil

3 Khana Link - Gumani - Malda Town

363 3 71 292 168 65 104 Nil

4 Asansol - Dugapur 49 Nil 18 31 98 5 35 Nil

5 Pradhankhanta - Asansol

102 1 4 98 38 4 34 Nil

6 Andal - Suri - Sainthia

155 1 14 141 57 13 41 Nil

7

Burdwan - Saktigarh - Dankuni - Dum-dum-Cossipur Road-Chitpur

193 2 16 177 97 42 54

Nil

8 Dum - Dum- Ballygunj-KP Docks-Budge-Budge

103 Nil 20 83 22 39 33 Nil

9 Saktigarh - Bandel - BTPS/Titagarh

157 4 18 139 98 24 29 Nil

One bridge is early steel girder bridge on CC+8+2 T routes and speed restriction of 30 kmph is existing on bridge. Work of replacement is in progress and likely to be completed in this financial year.

32 bridges are early steel girder bridge on CC+6+2 T routes and speed restrictions are existing on 7 bridges ranging from 75 kmph to 10 kmph. Work of replacement is sanctioned on 31 bridges and for remaining one bridge, replacement has been proposed for sanction.


(i) 4 bridges have been planned for instrumentation for CC+8+2 T loading.

(ii) No bridge has been planned for instrumentation for CC+6+2 T loading.

(ii) Instrumentation of first phase for 4 bridges has been done and report is yet to be received by RDSO.


As per the details submitted by core committee of Zonal Railways comprising Principal Chief Engineer, number of bridges inspected during Oct. –Dec.06 are as below:



(c) Minor bridges 1061


(a) Important bridges Nil


(c) Arch bridges 11

(d) Others 01




In CC+8+2 T and CC+6+2 T Routes works for strengthening of bridges are being planned.

5.5 North Central Railway:


S. N.

Name of route

nominated

Total No. of

bridges

Total No. of

Important bridges





Total No. of RCC/

PSC bridges

Total No of bridges nominate

d for instrumen

tation


started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2 T

1 MGS-ALD 1321 4 68 1249 165 73 904 2 Mar. 07

2 BINA-PWL 1243 4 96 1143 242 122 469 3 Mar. 07



(i) 5 bridges have been planned for instrumentation and agency has been finalized & Instrumentation yet to start.




In CC+6+2 T Routes, works of Rs. 5.0 crores (for 25 bridges) for strengthening of bridges have been planned.

5.6 North Eastern Railway:

5.6.1 There are 2 nominated route for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.


Total No. of

bridges

Total No. of

Important bridges


Total No. of Minor

Bridges

Total No. of Arch

Bridges

Total No. of Steel

Bridges

Total No. of RCC/ PSC

bridges

Total No of bridges

nominated for

instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2T

1 Chhapra- Barabanki-

Burhwal -Sitapur 566 6 56 504 2 35 268 6 Not started

2 Chhapra- Allahabad 268 4 18 246 17 19 185 Nil Not started



(i) 6 bridges have been planned for instrumentation for CC+6+2 T axle load.

(ii) Tender for instrumentation of bridges is yet to be called.


(i) No adverse effect has been noticed on the bridges as operation of CC+6+2 T has not started.


In CC+6+2 T Routes, works for Rs. 51.65 crores (for 7 bridges) for strengthening of bridges are being planned.

5.7 Northeast Frontier Railway:

5.7.1 There are 2 nominated route for CC+6+2 T axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.

Name of route

nominated

Total No. of bridges

Total No. of

Important bridges




Total No. of Steel

Bridges


bridges

Total No of


instrumentation

Whether CC+8+2T

/ CC+6+2T operation

started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2 T

1 MLDT-KDPR-NGC

876 7 259 610 13 228 559 4 Not

started

2 NBQ-DLPT-KYQ

424 1 259 610 1 15 150 Nil Not

started




(ii) Instrumentation is yet to start as tender is under finalization.





(c) Arch 5

(d) Others 899


(i) No adverse effect has been noticed on the bridges as operation has not yet started.


In CC+6+2 T Routes, works for strengthening of bridges are still to be planned.

5.8 Northern Railway:

5.8.1 There are 10 nominated route for CC+8+2 T axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.

Name of route

nominated

Total No. of

bridges

Total No. of

Important bridges

Total No. of Major

Bridges

Total No. of Minor

Bridges

Total No. of Arch

Bridges

Total No. of Steel

Bridges


bridges

Total No of bridges

nominated for

instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 SIR-NLDM 220 2 26 192 34 24 55 Nil Yes

2 UMB-CDG 119 1 19 99 4 6 30 Nil Yes

3 PLVL-NDLS-PNP-UMB

741 2 86 653 113 92 246 01 Yes

4 BTI-DUI-LDH 277 0 19 258 45 19 90 Nil Yes

5 DLI-NDLS-GZB-MTC-

SRE 441 3 37 401 74 76 187 Nil Yes

6 LKO-CNB 218 2 10 206 16 14 111 Nil Yes

7 Gauriganj-RBL-LKO-MB-SRE-

UMB-LDH-JRC-ASR-JUC-JAT

2976 28 412 2536 410 565 1541 1 Yes

8 DUI-RPJ 185 0 12 173 14 12 80 Nil Yes

9 Gauriganj-JNH via

PBH-BSB 254 0 7 247 36 5 37 Nil Yes

10 UCR-MGS via PRG

583 2 18 563 107 45 203 Nil Yes




(ii) Instrumentation of first phase for 2 bridges and second phase for 1 bridge have been done and report is yet to be received by RDSO.




In CC+8+2 T Routes, works for strengthening of bridges for Rs. 99.34 crores (for 87 bridges) are being planned.

5.9 North West Railway:


S. N.

Name of route

nominated

Total No. of

bridges

Total No. of Important bridges

Total No. of Major

Bridges

Total No. of Minor

Bridges

Total No. of Arch

Bridges

Total No. of Steel

Bridges

Total No. of RCC/

PSC bridges

Total No of bridges

nominated for

instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2 T

1 BTI-SOG-Birdhwal

75 0 6 69 2 6 15 Nil No

2 ROK-BNW 147 0 2 145 1 6 47 Nil No

3 RE-BKI-JP-MD-MJ

782 3 50 729 108 14 405 Nil No

4 BTI By pass 7 0 0 7 0 0 0 Nil No

5 MD Durai Bye pass

49 0 3 46 0 5 16 Nil No



(i) No bridge has been planned for instrumentation.


(i) No adverse effect has been noticed on the bridges as CC+6+2 T operation has not started.



5.10 South Central Railway:

5.10.1 There are 8 nominated routes for CC+8+2t and 15 nominated routes for CC+6+2t axle load. The route wise details of total bridges, important bridges major

bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.

Name of route

nominated

Total No. of

bridges

Total No. of

Important bridges

Total No. of Major

Bridges

Total No. of Minor

Bridges

Total No. of Arch

Bridges

Total No. of Steel

Bridges


bridges

Total No of bridges

nominated for

instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 BAY-GTL 101 1 21 79 - 0 74 Nil

15-05-05 2 GTL-GY 95 - 8 87 3 0 41 Nil

3 GY-RU 786 4 80 702 106 3 310 Nil

4 GTL-NDL 209 - 22 187 2 0 172 Nil

02-02-06

5 NDL-GNT 344 1 45 298 5 26 132 Nil

6 GNT-BZA 45 - 2 43 - 1 26 1

7 BZA-SLO 802 2 27 773 32 0 361 1

8 SLO-COA 31 - 2 29 4 0 12 -

CC+6+2 T

1 SLO-VSKP 754 - 42 712 28 - 346 Nil 02-02-06

2 BPQ-MCI &

MCI-KZJ 350 6 27 317 38 4 148 Nil 28-09-06

3 KZJ-SC 429 - 38 391 30 1 249 Nil 28-09-06

4 SC-WADI 503 - 74 429 31 3 292 Nil 28-09-06

5 WADI-RC 442 1 42 399 114 2 192 Nil 28-09-06

6 RC-GTL 252 1 14 237 19 21 187 Nil 06-02-07

7 KZJ-BZA 731 - 50 681 61 3 376 Nil 09-05-06

8 DKJ-KRA 28 - 1 27 7 0 6 Nil 16-02-06

9 KRA-BDCR 69 - 2 67 39 1 8 Nil 16-02-06

10 BDCR-MUGR

111 - 23 88 - 22 88 Nil 02-02-06

11 KRA-SYI 12 - 2 10 9 - 2 Nil 28-09-06

12 SNF by

pass 64 - 16 48 - 0 28 Nil 09-05-06

13 VKB-PRLI 281 - 16 265 97 0 130 Nil 09-05-06

14 PDL-GY & GY-DMM

208 1 20 187 - 17 118 Nil 28-09-06

15 MAGH-GDCR

59 - 3 56 - 3 56 Nil 28-09-06

There are 2 early steel girder bridges on these routes.

Bridge no. 1017 (44x8.84+36x19.28m on RC-GTL section) has speed restriction of 75 kmph. Work of rebuilding sanctioned. Targeted for completion during 2007-08.

Bridge no. 449 (2x12.19 m on BZA-VSKP section) has no speed restriction. Work of replacement sanctioned. Girders are already on site. Targeted for completion during 2007-08.


(i) 2 bridges have been planned for instrumentation. First round of instrumentation has been done for all 2 bridges. Reports are yet to be received by RDSO.


As per the details submitted by core committee of Zonal Railways comprising Principal Chief Engineer, number of bridges inspected during Jan-Mar 07 is as below:




(d) Others 2656




(c) Arch bridges 89

(d) Others 756





(d) Others 1213


(i) Br no 208 Dn (1x91.44+ 5 x 18.3 m) -Oil leaking from one bearing of 91.44 m span. Speed restriction of 75 kmph imposed.

(ii) Br no 452 Dn (7 x 12.19 m) -Individual bed blocks shaken and cracks observed. Grouting done and bridge under observation.

(iii) Br no 213 Dn (1x 1.8 m) Cracks in abutments and in slab. Speed restriction of 30 kmph imposed. Planned for rebuilding with RCC box.

(iv) Br no 202 Dn (1x 1.8 m) Cracks in abutments. Speed restriction of 75kmph imposed. Planned for rebuilding with RCC box.


Rehabilitation/ strengthening of 75 bridges (29 bridges on CC+8+2 T and 46 bridges on CC+6+2 T) have been planned by Zonal Railway. Cost of the work has not been given by Zonal Railway.

5.11 South East Central Railway:

5.11.1 There is 1 nominated route for CC+8+2t and 6 nominated routes for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.

Name of Route

nominated for

CC+8+2T

Total no. of

bridges

Total no. of

important bridges

Total no. of major

bridges

Total no. of minor

bridges

Total no. of arch

bridges

Total no. of steel

bridges

Total no. of conc. (RCC/ PSC)

bridges

Total no. of bridges

nominated for

instrumentation

CC+8+2T operation

started with date

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 JSG-KDTR 187 02 14 171 36 23 103 1 Feb.06

CC+6+2 T

1 GAD-KRBA-CPH

166 1 12 163 5 8 126 Nil

Feb.06

2 CPH-BSP 160 3 15 142 5 14 118 Nil

3 BSP-APR 154 Nil 21 133 20 28 48 1

4 APR-KTE 288 Nil 59 229 29 73 153 1

5 Dumrikhurd-KNHN

11 Nil Nil 11 Nil Nil 6 Nil

6 KNHN-Kalaumna

44 2 7 35 2 9 16 1



(i) One bridge has been planned for instrumentation for 25T loading on Durg-DalliRajhara route.

(ii) One bridge has been planned for instrumentation for CC+8+2 T loading.

(iii) 3 bridge have been planned for instrumentation for CC+6+2 T loading.

(iv) First round of instrumentation has been done for all 5 bridges.

(v) On one bridge second round of instrumentation has been done.

(vi) The report of first and second round of instrumentation for bridge no. 105 has been received. Reports of first round of instrumentation for bridge number 91K UP, 175K UP, 154 and 34 is yet to be received in RDSO.

(vii) Observations of RDSO on Instrumentation:

(A) Bridge number 105 (DUG-DRZ Section, 5x30.5+2x12.2m plate girder):

(a) In first and second round of instrumentation, deflection has been found with in permissible limit.


(c) In first round of Instrumentation, longitudinal force at bearing was not measured by Zonal Railway. In the second round of instrumentation, there appears to be error in measurement of longitudinal force as measured longitudinal force with single loco is 35 T and dispersion is 18 T while with double loco measured longitudinal force is 20 T and dispersion is 8 T.

(d) Residue fatigue life of the bridge assessed as 50 years.

(e) 1.5 degree of tilt of the pier which does not appear to be correct and no settlement of pier has been recorded.


As per the details submitted by core committee of Zonal Railways comprising Principal Chief Engineer, number of bridges inspected during Jan.-Mar.07 is as below:



(c) Arch bridges 13

(d) Others 83

Number of bridges inspected during Oct.-Dec. 06 is as below:



(c) Arch bridges 57

(d) Others 447




(c) Arch bridges 03

(d) Others 55


(i) Bridge number 15 UP (3x60’ in KAV-KP) 2 numbers stiffeners were cracked in middle span. Few other stiffeners are developing cracks in all spans. Also loosening of rivets noticed in cross frame.

(ii) Bridge number 190K UP (3x40’ in CHD-VYK):

Both vertical stiffeners at second cross girder of span number 3 cracked.

5.11.5 Details of bridges planned for replacement/rehabilitation

In CC+8+2 T Routes works of Rs. 14.43 crores (for 8 bridges) for jacketing of piers, abutments, foundations and replacement of bearings for 25 T axle load and replacement of girders of bridge number 145 and 154 have been planned.

In CC+6+2 T Routes, works of Rs. 2.68 crores for jacketing of piers, abutments, foundations and replacement of bearings of bridge number 46 UP and DN and Rs. 1.51 crores for jacketing and recapping of piers and abutments of bridge no. 34 UP have been planned.

5.12 South Eastern Railway:

5.12.1 There are 18 nominated routes for CC+8+2t and 11 nominated routes for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S.N.

Name of Route nominated for

CC+8+2 & CC+6+2

Total no. of

Bridges

Total no. of Important Bridges

Total no. of major Bridges

Total no. of minor

Bridges

Total no. of arch

Bridges

Total no. of steel Bridges

Total no.of

concrete (RCC/ PSC)

Bridges


nominated for

instrumentation

Whether CC+8+2 T/ CC+6+2 T operation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1

GUA-BJMD-RKSN-SINI-CNI-GRB-JOC-DMA-

BURN-ASN

946 2 59 885 269 20 533 3

15/5/05

2 BNDM-SINI-ADTP (DN)

207 0 21 186 112 15 46 4

3 BYX-BJMD (SL) 35 0 3 32 5 3 21 0

4 BNDM-BXF (SL) 188 0 6 182 75 2 108 0

5 BUF-KRBU (SL) 163 0 4 159 45 1 87 0

6 DMA-KPK (SL) 21 0 4 17 12 2 4 0

7 PDPH-BSPX

(SL) 104 0 2 102 32 0 66 0

8 BNDM-NXN-PURNAPANI

(SL) 27 0 5 22 9 5 12 1

9 NXN-THE-

MURI-BKSC (SL/DN)

672 0 27 645 270 16 272 0

10 PRR-KSX (SL) 65 0 0 65 0 0 65 0

11 BRMP-BNDM

(SL) 71 0 1 70 10 1 47 0 7/06/05

12 ADTP-KGP-

PKU-HLZ (DN) 360 0 27 333 69 16 152 3

22/07/05

13 KGP-ROP-BHC

(UP) 226 0 38 188 72 22 109 1

14 ANR-RUI-BJE-

VAA (UP) 77 0 2 75 29 2 20 0

15/01/06 15 ANR-ADA (SL) 32 0 0 32 5 0 9 0

16 RNC-LAD(SL) 111 0 2 109 0 0 111 0

17 BNDM-JSG (UP) 155 0 13 142 49 9 84 0 6/02/06

18 ADA-MDN (DN) 238 0 14 224 81 9 68 0 9/05//06

CC+6+2 T

1 BRKA-CNI&CNI-GMH OF BRKA-MURI-CNI-ADTP

319 0 19 300 51 14 167 0

06/02/06

2 JSG-ROU (DN) 141 0 12 129 29 9 97 0

3 RDR-DMA &

JOC-SNTD OF RDR-SNTD (SL)

47 0 4 43 8 3 13 0

4 DDGA-CRP-BKSC (SL)

24 0 0 24 2 0 21 0

5 MHQ-TLE-

TPKD-BKSC (SL)

40 0 2 38 8 3 11 0

6 JBO-BJE of

JBO-BJE-ANR-CNI-TATA (DN)

17 0 2 15 9 2 5 0

7

TSBD-MHQ of TSBD-MHQ-TLE-TPMD-BKSC (SL)

Bridges included in MHQ – VAA Route

8

SDMD-BJE of SDMD-BJE-TLE-

TPKD-BKSC (DN)

1 0 1 0 0 1 0 0

9 MHQ-VAA of

MHQ-VAA-BJE (SL)

38 0 5 33 14 2 15 0 9/5/2006

10 PKU-BLTR (DN) 56 0 10 46 8 8 39 0 28/09/06

11 MHQ-GMO (SL) 22 0 2 20 9 1 10 0

There are 10 early steel girder bridges on CC+8+2 T Axle load routes and one early steel girder bridge on CC+6+2 T Axle load routes. Works for replacements of all early steel girder bridges are sanctioned.


(i) 12 number of bridges have been planned for instrumentation for CC+8+2 T loading.

(ii) No bridge has been planned for instrumentation for CC+6+2 T loading.

(iii) First round of instrumentation has been done for all 12 bridges. Second & third rounds of instrumentation have been done on 2 bridges.

(iv) The report of first and second round of instrumentation for bridge no. 414 DN and 3 DN has been received. Draft reports of first round of instrumentation for bridge number 694, 25 DN, 206 DN,166 DN, 53 DN, 84 DN, 263 UP and 520 DN have been received in RDSO.

(v) Observations of RDSO On Instrumentation:

(A) Bridge number 414 DN (CNI-ANR Section, 5x100’+1x80’ under slung girder):

(a) In first and second phase of instrumentation deflection has been found with in permissible limit.


(c) Longitudinal force, settlement of pier fatigue life have not been measured by Zonal Railway.

(d) Tilt of the pier is negligible.

(B) Bridge number 3 DN (Tata-JSG Section, 3x30’ Arch Bridge):

(a) Deflections have been found with in permissible limit.


(C) Bridge number 694 (BGKA-NXN Section, 2x60’+7x100’ plate girder):



(c) 1.4 degree of tilt of the pier which does not appear to be correct and No settlement of pier has been recorded.

(d) Fatigue life has not been measured by Zonal Railway.

(e) Instrumentation of longitudinal force could not be done by Zonal Railway.

(D) Bridge number 25 DN (Tata-JSG Section, 10x80’ Plate girder):



(c) 2.7 degree of tilt of the pier which does not appear to be correct and no settlement of pier has been recorded.


(e) Longitudinal force at draw bar has been measured as 37 T and at bearing level it is 22 T. However longitudinal force has not been measured at engine level.

(E) Bridge number 206 DN (MXW-PST Section, 4x60’+2x40’+1x150’ under slung + plate girder):






(F) Bridge number 166 DN (Tata-JSG Section, 1x80’ Plate girder):


(b) Stresses in the super structure are well with in the permissible

limit.




(G) Bridge number 53 DN (KGP-Tata Section, 10x100’ through girder):



(c) 0.04 degree of tilt of the pier and no settlement of pier have been recorded.


(e) Longitudinal force at draw bar for 10 axles (brake binding condition) has been measured as 30.8 T and at bearing level it is 24.1 T. However longitudinal force has not been measured at engine level. Also braking condition instrumentation has not been done.

(H) Bridge number 84 DN (KGP-HWH Section, 7x100’ under slung girder):

(a) Deflection has been found with in permissible limit (for CC+4+2 T loading).

(b) Stresses in the super structure are well with in the permissible limit (for CC+4+2 T loading).

(c) 0.01 degree of tilt of the pier and no settlement of pier has been recorded.

(d) At the time of instrumentation speed restriction of 20 kmph was existing on the bridge, therefore braking condition was not instrumented.

(e) Fatigue life has not been measured by Zonal Railway.

(f) Longitudinal force at draw bar has been measured as 29.16 T and at bearing level it is 20 T. However longitudinal force has not been

measured at engine level.

(I) Bridge number 263 UP (KGP-BHC Section, 4x60’+2x150’ under slung + plat girder):


(b) Stresses in the super structure are well with in the permissible limit. However no effect of speed on the stresses in the member has been observed.


(d) Fatigue life and longitudinal force have not been measured by Zonal Railway.

(J) Bridge number 520 UP (CNI-ASN Section, 22x100’ underslung girder:


(b) Stresses in the super structure are well with in the permissible limit. However no effect of speed on the stresses in the member has been observed.





As per the details submitted by core committee of Zonal Railways comprising Principal Chief Engineer, number of bridges inspected during Jan-Mar 07 is as below:




(d) Others 597





(d) Others 1167




(c) Arch bridges 01

(d) Others 20


(i) Crack in the stiffener angle connecting cross bracings and gussets of span no 2 of bridge number 394 DN (2x60’ on KTD-URA Section on GUA-BJMD-RKSN route) observed.

(ii) Bridge number 520:

Girders of bridge No. 520 Up (22x30.5m) at km 314/5-29 between MDKD-DMA on ADA_ASN section of Adra Division, constructed in 1965, have a long history of developing cracks in different components in different spans since 1987 and some increase in the length of crack have been detected in October,2006. This Bridge lies on the nominated CC+8+2t route and rate of propagation of the crack has increased after introduction of CC+8+ 2t operations. The length of the crack has increased at following location:

Location of crack Year first of detection

Status as on October,2006

Status as on March,2007

Span No.9 ASN End, -Initial hair crack of 175mm at bend of bent plate connecting end Raker & top boom.

1999 Crack length increased by 40mm in 7 years i.e. from 1999-2006.

Crack length increased by 15mm in 6 months after introduction of CC+8+2T operation.

Span No. 13 ASN 2003 Crack length Crack length

End. D/S, -Hair crack of 270mm at Web-flange junction of inside channel of top chord near end of girders over bearing area.

increased by 15mm in 3 years i.e. 2003-2006.

increased by 15mm in 6 months after introduction of CC+8+2T operation.

(iii) Hair crack at edge of bed plate in pier number 1 and 2 of bridge number 39 (1x60’+2x40’ on RJA-TNZ Section on Aditypur-KGP route) observed.

(iv) Hair crack in slab of bridge number 189 UP (1x2.4m on NSI-DNT Section on KGP-Bhadrak route) observed.


In CC+8+2 T Routes, works of Rs. 50.43 crores for strengthening of bridges have been planned.

In CC+6+2 T Routes, works of Rs. 13.54 crores for strengthening of bridges have been planned.

5.13 Southern Railway:

5.13.1 There is 1 nominated route for CC+8+2t and 1 nominated route for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.


CC+8+2T

Total no. of

bridges

Total no. of

important bridges

Total no. of major bridges

Total no. of minor bridges

Total no. of arch

bridges

Total no. of steel

bridges


bridges


nominated for

instrumentation

Whether CC+8+2T/CC

+6+2T operation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1

Attipattu-Veysarpadi-Arakkonam-Renigunta

970 2 31 937 110 40 223 7 01-08-06

CC+6+2 T

1

Chennai Beach - Veysarpadi - Arakkonam -

Jolarpet - Salem - Metturdam

863 2 40 821 248 26 336 Nil Not

started



(i) 7 bridge have been planned for instrumentation for CC+8+2 T loading.

(ii) No bridge has been planned for instrumentation for CC+6+2 loading.

(iii) First round of instrumentation has been done for 2 bridges.

(iv) On one bridge second round of instrumentation has been done.

(v) The report of first round of instrumentation for bridge no. 85 DN has been received.

(vi) Reports of second round of instrumentation for bridge number 85 DN and first round of bridge no. 155 DN is yet to be received in RDSO.

(vii) Observations of RDSO on Instrumentation:

(A) Bridge number 85 DN (Arakonam-RU Section, 13x12.2m plate girder):

(a) In first phase of instrumentation deflection has been found with in permissible limit.


(c) In first round of Instrumentation, maximum longitudinal force at rail level is 29 T and on girder is 6 T without brake binding.

(d) Tilt of the pier and settlement of pier has not been measured by Zonal Railway.

(e) Fatigue life has not been measured by Zonal Railway.


As per the details submitted by core committee of Zonal Railways comprising Principal Chief Engineer, number of bridges inspected during Jan –Mar 07 is as below:



(c) Arch bridges 01

(d) Others 03




(c) Arch bridges 01

(d) Others 12




(c) Arch bridges 01

(d) Others 16




In CC+8+2 T Routes works of Rs. 3.06 crores (for 43 bridges) for strengthening of bridges have been planned.


5.14 South Western Railway:

5.14.1 There are 4 nominated route for CC+8+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.


CC+8+2T

Total no. of

bridges

Total no. of

important

bridges

Total no. of major

bridges

Total no. of minor

bridges

Total no. of arch

bridges

Total no. of steel

bridges


bridges


nominated for instrumentation

Whether CC+8+2T/CC+6+2T operation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 Bellary-Hospet-Hubly-Londa-

Vasco-Da-Gama 911 03 61 848 132 93 387 04

Yes 2

Toranagallu-Ranajitpura

45 - 2 43 - 7 25 01

3 Hospet-Gunda

Road-Swamihalli 139 - 3 136 1 2 107 Nil

4 Gunda Road-

Kotturu 118 - 4 113 - 5 107 Nil



(i) 5 bridges have been planned for instrumentation for CC+8+2 T. Contract for instrumentation of 5 bridges has been given to IISC/Bangalore. Field trials have been done on 1 Sample Bridge no 352 A (SBC-TK Sec). Model has been validated based on trials. Purchase order for procurement of equipments has been finalized by IISC Bangalore. Instrumentation of Ist bridge is planned in June 2007.





(c) Arch bridges 95

(d) Others 651




(c) Arch bridges 15

(d) Others 21




(c) Arch bridges 16

(d) Others 20


(i) Some minor cracks have been observed in the bed blocks of abutment of bridge no. 139A (1x30.5m span) open web girder built to BGML loading on Bellary-Gadag section. However no further propagation of cracks has been observed during last year.



5.15 West Central Railway:

5.15.1 There is 1 nominated route for CC+8+2 T and 2 nominated routes for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.

Name of route nominated for

CC+8+2T/ CC+6+2T

Total No. of

bridges

Total No. of

Important bridges

Total No. of Major

Bridges

Total No. of Minor

Bridges

Total No. of Arch

Bridges

Total No. of Steel

Bridges


bridges

Total No of


instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 Manikpur-Jabalpur

345 19 20 306 215 25 84 1 May 06

CC+6+2 T

1 Katni-Bina-Kota 629 34 48 547 204 82 179 2 Feb. 06

2 Bina-Itarsi-Khandwa

957 41 92 824 168 124 261 1 May 06



(i) One bridge has been planned for instrumentation for CC+8+2 T.

(ii) 3 bridges have been planned for instrumentation for CC+6+2 T.

(iii) Agency for instrumentation of four bridges finalized (CRRI/NDLS).

(iii) Instrumentation is yet to start.


As per the details submitted by core committee of Zonal Railways comprising Principal Chief Engineer, number of bridges inspected during Oct. –Dec.06 is as below:



(c) Arch bridges 55

(d) Others 414





(d) Others 218






5.16 Western Railway:

5.16.1 There is 1 nominated route for CC+6+2t axle load. The route wise details of total bridges, important bridges major bridges, number of arch bridges, steel bridges, and concrete bridges is given in the table below:-

S. N.

Name of route

nominated

Total No. of

bridges

Total No. of

Important bridges

Total No. of Major

Bridges

Total No. of Minor

Bridges




bridges

Total No of bridges nominate

d for instrumen

tation


started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2 T

1 Udhana-Jalgaon

415 1 53 361 41 108 118 Nil May 06

Out of 106 steel bridges, 32 bridges are early steel girder bridges. Steel girder bridges of 9.15 m span have been sanctioned for replacement by slab and steel girder bridges of more than 9.15 m span have been sanctioned by steel

girders. No speed restriction has been imposed on these bridges.


(i) No bridge has been planned for instrumentation.



(a) Important bridges -


(c) Arch bridges 05

(d) Others -




In CC+6+2 T Routes, works of Rs. 114.62 crores (for 152 bridges) for slab replacement/re-girdering of bridges have been planned.

6.0 INSTRUMENTATION OF BRIDGES:

6.1 SALIENT FEATURES OF INSTRUMENTATION:

(i) Total number of bridges planned for instrumentation = 79

(ii) Total number of bridges planned for instrumentation for CC+8+2 T = 45

(iii) Total number of bridges planned for instrumentation for CC+6+2 T =34

(iv) Total number of bridges instrumented for Ist phase:

a. For CC+8+2 T = 34

b. For CC+6+2 T = 3

(v) Total number of bridges instrumented for II nd phase:

c. For CC+8+2 T = 4

d. For CC+6+2 T = Nil

(vi) Total number of bridges instrumented for III rd phase:

e. For CC+8+2 T = 2

f. For CC+6+2 T = Nil

(vii) Railway wise position of instrumentation is as below:-

CC+8+2t Axle load

Railways Bridges to be instrumented

Bridge Instrumented

in phase I

Report received in RDSO

Bridge Instrumented

in phase II

Report received in

RDSO

Bridge Instrumented

in phase III

Report received in

RDSO

ECOR 10 10 4 0 0 0 0

ER 4 4 0 0 0 0 0

NR 2 2 0 0 0 0 0

SCR 2 2 0 0 0 0 0

SECR 2 2 1 1 1 0 0

SER 12 12 10 2 2 2 0

SR 7 2 1 1 0 0 0

SWR 5 0 0 0 0 0 0

WCR 1 0 0 0 0 0 0

Total 45 34 16 4 3 2 0

CC+6-2T Axle load


Bridge Instrumented

in phase I

Report received in RDSO

Bridge Instrumented

in phase II

Report received in

RDSO

Bridge Instrumented

in phase III

Report received in

RDSO

CR 6 0 0 0 0 0 0

ECR 7 0 0 0 0 0 0

NCR 5 0 0 0 0 0 0

NER 6 0 0 0 0 0 0

NFR 4 0 0 0 0 0 0

SECR 3 3 0 0 0 0 0

WCR 3 0 0 0 0 0 0

TOTAL 34 3 0 0 0 0 0

G.TOTAL 79 37 16 4 3 2 0

The above details have also been shown in graphical form as below:

PROGRESS OF INSTRUMENTATION FOR CC+8+2 T AS ON MAY 07

10

4

2 2 2

12

7

5

1

10

4

2 2 2

12

2

0 0

4

0 0 0

1

10

1

0 00 0 0 0

1

2

1

0 00 0 0 0

1

2

0 0 00

2

4

6

8

10

12

14

ECOR ER NR SCR SECR SER SR SWR WCRZONAL RAILWAYS

NU

MB

ER

OF

BR

IDG

ES

Bridges to be instrumented Bridge instrumented in phase I Report received in RDSO

Bridge instrumented in phase II Report received in RDSO

PROGRESS OF INSTRUMENTATION FOR CC+6+2 T AS ON MAY 07

6

7

5

6

4

3 3

0 0 0 0 0

3

00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 00

1

2

3

4

5

6

7

8

CR ECR NCR NER NFR SECR WCRZONAL RAILWAYS

NO

OF

BR

IDG

ES


Bridge instrumented in Phase II Report received in RDSO

PROGRESS OF INSTRUMENTATION FOR HEAVY AXLE LOAD AS ON

MAY 07

6

10

7

4

5

6

4

2 2

5

12

7

5

4

0

10

0

4

0 0 0

2 2

5

12

2

0 00

4

0 0 0 0 0 0 0

1

10

1

0 00 0 0 0 0 0 0 0 0

1

2

1

0 00 0 0 0 0 0 0 0 0

1

2

0 0 00

2

4

6

8

10

12

14

CR ECOR ECR ER NCR NER NFR NR SCR SECR SER SR SWR WCR

ZONAL RAILWAYS

NU

MB

ER

OF

BR

IDG

ES


Bridge instrumented in phase II Report received in RDSO

(viii) The bridge wise and railway wise analysis for bridges to be instrumented is as below:


No of steel bridges to be instrumented

No of arch bridges to be instrumented

No of conc. bridges to be instrumented

CR 6 6

ECOR 10 9 1

ECR 7 6 1

ER 4 1 3

NCR 5 4 1

NER 6 4 1 1

NFR 4 3 1

NR 2 2

SCR 2 2

SECR 5 5

SER 12 9 3

SR 7 3 1 3

SWR 5 3 1 1

WCR 4 4

Total 79 61 7 11


BRIDGE WISE POSITION OF INSTRUMENTATION

6

10

7

4

5

6

4

2 2

5

12

7

5

4

6

9

6

1

4 4

3

2 2

5

9

3 3

4

1

3

1 1 11 1 1 1

3 3

1

0

2

4

6

8

10

12

14

CR ECOR ECR ER NCR NER NFR NR SCR SECR SER SR SWR WCR

ZONAL RAILWAYS

NU

MB

ER

OF

BR

IDG

ES

Bridges to be instrumented Steel bridges to be instrumented

Arch bridges to be instrumented Concrete bridges to be instrumented

(ix) The span wise bridges to be instrumented by Zonal Railways are as below:

Railways

Span of bridges

UPTO 9.14m

12.2m 18.3m 24.4m 30.48m 33.5m 45.7m >61m Total

CR 1 2 3 6

ECR 1 2 1 3 7

ECOR 2 2 4 2 10

ER 3 1 4

NCR 1 1 1 1 1 *(61) 5

NER 2 1 2 1 *(61) 6

NFR 1 1 1 1 *(121) 4

NR 1 1 2

SCR 1 2 *(91.44) 3

SECR 1 1 3 1 6

SER 3 2 5 2 12

SR 2 2 2 1 7

SWR 1 1 3 5

WCR 1 1 1 1 4

TOTAL 13 5 12 12 20 1 13 5 81

* INDICATE LENGTH OF SPAN.


SPAN WISE POSITION OF INSTRUMENTATION

1

3

1

2

1 32

1

1

1

2

1

2

2

1

1

1 1

2

1

2

1

2

2

2

1

1

1

3

4

1

3

5

3

1

1

3

2

1

1

1

1

1 2

11

1

1

2

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

CR ECR ECOR ER NCR NER NFR NR SCR SECR SER SR SWR WCR

ZONAL RAILWAYS

% B

RID

GE

S

Upto 9.14m 12.2m 18.3m 24.4m 30.48m 33.5m 45.7m >61m

6.2 ANALYSIS OF INSTRUMENTATION:

(a) DEFLECTION:

The details of bridge wise actual deflection measured vis-à-vis the permissible deflection has been analyzed by RDSO and it is observed that actual deflection coming on the bridges is less than the permissible deflection. The details are given in the graphical form.

INSTRUMENTATION OF BRIDGES FOR DEFLECTION

13.9

35.3

18.6

31.2

22.918.7

11.2

38.6

16.2 15.3

25.9

35.3

25.6

8.5810.7

54.8

76.2

40.6

50.854 53.4

40.6

78.75

40.6

53.1 53.1

76.2

53.1

21.83 21.87

0

10

20

30

40

50

60

70

80

9030.5

/1554/E

Co

R

45.7

2/4

49/E

Co

R

24.4

/467/E

Co

R

30.4

8/5

44/E

Co

R

30.4

8/4

14/S

ER

30.5

/694/S

ER

24.4

/25/S

ER

45.7

/206/S

ER

24.4

/166/S

ER

30.5

/53/S

ER

30.5

/84/S

ER

45.7

/263/S

ER

30.5

/520/S

ER

12.2

/85/S

R

12.2

/105/S

EC

R

SPAN/BRIDGE NO./RLY

DE

FL

EC

TIO

N (

MM

)

ACTUAL/MODELLED DEFLECTION PERMISSIBLE DEFLECTION

(b) STRESSES:

The details of bridge wise actual stresses measured on critical members vis-à-vis the permissible stresses has been analyzed by RDSO and it is observed that actual stresses coming on the bridges is less than the permissible stresses. The details are given in the graphical form.

INSTRUMENTATION OF BRIDGES FOR STRESSES IN SUPERSTRUCTURE

59.5

80.8

5665

55.65

40.05

24.58 23.67

61.1

77.7

154 154 154 154 154 154 154 154 154 154

0

20

40

60

80

100

120

140

160

18030.5

/1554/E

Co

R

45.7

2/4

49/E

Co

R

24.4

/467/E

Co

R

30.4

8/5

44/E

Co

R

30.4

8/4

14/S

ER

30.5

/694/S

ER

24.4

/25/S

ER

24.4

/166/S

ER

45.7

/263/S

ER

30.5

/520/S

ER

SPAN/BRIDGE NO./RLY

ST

RE

SS

ES

(M

PA

)

ACTUAL STRESSES PERMISSIBLE STRESSES

(c) LONGITUDINAL FORCES:

(i) Bridge wise longitudinal forces measured at bearing level viz a viz. theoretical tractive effort (based on rated tractive effort of locomotive used for trial, number of axle of the loco coming on the bridge test span) has been analyzed by RDSO and it is observed that dispersion of longitudinal force away from test span with respect to theoretical tractive effort varying from 16.2 % to 72.7 %. After having a series of discussion with concerned CBE of the Zonal Railway and Prof. P.Banerjee of IIT/Mumbai who is closely associated with instrumentation, it has been noted that the possible large variation in longitudinal forces transferred at bearing level is mainly due to large noise to signal ratio noticed during strain measurement at bearing level and filtration process adopted to clean the signal from noise. However, more number of subsequent trials on bridges for longitudinal forces will indicate the trend more clearly.

Details of Longitudinal Forces (Maximum) measured at bearing, bridge wise are as below:

S.N.

Railway Bridge No

Span(m) Longitudinal force (T)

Theoretical Measured at Bearing

% Dispersion

1 ECoR

1554 30.5 74.3 22 70.39

2 449 45.72 81 60.14 25.75

3 467 24.4 60.8 43.2 28.95

4 544 30.48 73.3 61.36 16.29

5 SER

25 24.4 66 22 66.67

6 206 45.7 88 55 37.50

7 166 24.4 66 30 54.55

9 53 30.5 73.3 24.1 67.12

9 84 30.5 73.3 20 72.71

10 520 30.5 73.3 22 69.99

The above details are given in graphical form as below:

INSTRUMENTATION OF BRIDGES FOR LONGITUDINAL FORCE

BAR GRAPH

74.3

81

60.8

73.3

66

88

66

73.3 73.3 73.3

22

60.14

43.2

61.36

22

55

3024.1

20 22

70.39

25.7528.95

16.29

66.67

37.50

54.55

67.1272.71

69.99

0

10

20

30

40

50

60

70

80

90

100

30.5

/1554/E

Co

R

45.7

2/4

49/E

Co

R

24.4

/467/E

Co

R

30.4

8/5

44/E

Co

R

24.4

/25/S

ER

45.7

/206/S

ER

24.4

/166/S

ER

30.5

/53/S

ER

30.5

/84/S

ER

30.5

/520/S

ER

SPAN/BRIDGE NO./RLY

LO

NG

ITU

DIN

AL

FO

RC

ES

(T

)

THEORITICAL LF LF AT BEARING % DISPERSION

LINE GRAPH

0

10

20

30

40

50

60

70

80

90

100

30

.5/1

55

4/E

CoR

45

.72

/44

9/E

CoR

24

.4/4

67

/EC

oR

30

.48

/54

4/E

CoR

24

.4/2

5/S

ER

45

.7/2

06

/SE

R

24

.4/1

66

/SE

R

30

.5/5

3/S

ER

30

.5/8

4/S

ER

30

.5/5

20

/SE

R

SPAN/BR NO./RLY

LO

NG

ITU

DIN

AL

FO

RC

ES

(T

)

Theoritical LF (T) LF at Bearing (T) % Dispersion

(ii) The trial was conducted with 2WAG9 loco with 58 BOX’N’ loaded with CC+8+2 on two bridges of Bondamunda- Hatia section of S.E. Railway on 8.01.07 and starting tractive effort was measured and compared with theoretical value and it is found that tractive effort applied by the locomotive is varying from 45.2 % to 90.0% of the theoretical tractive effort. The details are given as below:-

Instrumentation of Bridges by RDSO

S.N.

RLY Type of Loco

Span(M) Bridge No.

Longitudinal forces Remark

Theoretical

Tractive effort by loco

(without Brake binding)

Tractive effort by loco (with

Brake binding)

1 SER 2WAG9 2x18.3+7x30.48

694 93.8 34.7 42.4

Approach of bridge with down gradient of 1:125. Bridge on level track

2 SER 2WAG9 6x18.3 574 93.8 75.5 84.5

Approach of bridge with Up gradient of 1:100. Bridge on level track

(iii) A trial was also conducted with two WAG7 loco with 54 BOX’N’ loaded with CC+8+2t and along with RDSO recording car on bridge No.85 (level track) of S. Railway on 13.2.07. Starting tractive effort without brake binding was measured in range of 61.4 to 78 T and compared with theoretical value (88 T) and it is found that tractive effort applied by the locomotive is varying from 69.77 % to 88.63 % of the theoretical tractive effort.

From the above two trials (ii) & (iii), it is observed that actual Tractive Effort applied by loco with respect to theoretical tractive effort varies from 45.2% to 90% depending on gradient on approaches.

The above details are given in graphical form as below:-

INSTRUMENTATION OF BRIDGES FOR LONGITUDINAL FORCES BY RDSO

93.8 93.8

88

42.4

90.09 88.64

78

84.5

45.20

0

10

20

30

40

50

60

70

80

90

100

694/SER 574/SER 85/SR

BRIDGE NO./RAILWAY

LO

NG

ITU

DIN

AL

FO

RC

ES

(T

)

Theoritical Longitudinal force (T) Actual Longitudinal force (T) % Actual LF W.R.T Theoritical LF

7.0 CONCLUSIONS:

7.1 Effect of running of CC+8+2 T/ CC+6+2 T on bridges:

7.1.1 South Central Railway:

(i) Br no 208 Dn (1x91.44+ 5 x 18.3 m) -Oil leaking from one bearing of 91.44 m span. Speed restriction of 75 kmph imposed.

(ii) Br no 452 Dn (7 x 12.19 m) -Individual bed blocks shaken and cracks observed. Grouting done and bridge under observation.

(iii) Br no 213 Dn (1x 1.8 m) Cracks in abutments and in slab. Speed restriction of 30 kmph imposed. Planned for rebuilding with RCC box.

(iv) Br no 202 Dn (1x 1.8 m) Cracks in abutments. Speed restriction of 75kmph imposed. Planned for rebuilding with RCC box.

7.1.2 South East Central Railway:

(i) Bridge number 15 UP (3x60’ in KAV-KP) 2 numbers stiffeners were cracked in middle span. Few other stiffeners are developing cracks in all spans. Also loosening of rivets noticed in cross frame.

(ii) Bridge number 190K UP (3x40’ in CHD-VYK):

Both vertical stiffeners at second cross girder of span number 3 cracked.

7.1.3 South Eastern Railway:

(i) Crack in the stiffener angle connecting cross bracings and gussets of span no 2 of bridge number 394 DN (2x60’ on KTD-URA Section on GUA-BJMD-RKSN route) observed.

(ii) Bridge number 520:

Girders of bridge No. 520 Up (22x30.5m) at km 314/5-29 between MDKD-DMA on ADA_ASN section of Adra Division, constructed in 1965, have a long history of developing cracks in different components in different spans since 1987 and some increase in the length of crack have been detected in October,2006. This Bridge lies on the nominated CC+8+2t route and rate of propagation of the crack has increased after introduction of CC+8+ 2t operations. The length of the crack has increased at following location:

Location of crack Year first of detection

Status as on October,2006

Status as on March,2007

Span No.9 ASN End, -Initial hair crack of 175mm at bend of bent plate connecting end Raker & top boom.

1999 Crack length increased by 40mm in 7 years i.e. from 1999-2006.


Span No. 13 ASN End. D/S, -Hair crack of 270mm at Web-flange junction of inside channel of top chord near end of girders over bearing area.

2003 Crack length increased by 15mm in 3 years i.e. 2003-2006.


(iii) Hair crack at edge of bed plate in pier number 1 and 2 of bridge number 39 (1x60’+2x40’ on RJA-TNZ Section on Aditypur-KGP route) observed.

(iv) Hair crack in slab of bridge number 189 UP (1x2.4m on NSI-DNT Section on KGP-Bhadrak route) observed.

7.1.4 South Western Railway:

(i) Some minor cracks have been observed in the bed blocks of abutment of bridge no. 139A (1x30.5m span) open web girder built to BGML loading on Bellary-Gadag section. However no further propagation of cracks has been observed during last year.

7.1.5 No adverse effect was noticed on the bridges in other Railways.

7.2 ANALYSIS OF INSTRUMENTATION:

7.2.1 The measured deflection for CC+8+2T is well with in the permissible limit of deflection.

7.2.2 The stresses measured on the critical members for CC+8+2T are with in the permissible limit of stresses.

7.2.3 It has been noted that there is large variation in longitudinal forces transferred at bearing level (27.3% to 83.7%), mainly due to large noise to signal ratio noticed during strain measurement at bearing level and filtration process adopted to clean the signal from noise. However, more number of subsequent trials on bridges for longitudinal forces will indicate the trend more clearly.

7.2.4 Out of 13 bridges where tilt of the pier has been measured, it is varying from 1.2 to 2.7 degree on 5 bridges and is minor/ negligible on 8 remaining bridges. Tilt of the order of 1.2 to 2.7 degree is considered very high and there appears to be error in measurement.

8.0 RECOMMENDATIONS: 8.1 Effect of running of CC+8+2T/ CC+6+2T has been reported on 11 bridges. All

these bridges are required to be kept under close observation by Zonal Railways. Necessary remedial measures should also be taken. The effect on bridges needs to be monitored for a longer period of time as running of CC+8+ 2T/CC+6+2T is in operation since last 2 years only.

8.2 With the introduction of higher axle load, bridge components are subject to increased number of cycle of higher stress ranges and shall be giving increased fatigue damage and will affect the residual fatigue life of the bridges. This should be taken into consideration while planning for strengthening/re-building of bridges.

8.3 As operation of CC+8+2T and CC+6+2T axle load will continue for long time it is desirable to do instrumentation of more number of bridges by the Zonal Railways.

8.4 Zonal Railways should expedite the instrumentation of bridges already planned.

8.5 Presently the reports of instrumentation done by the instrumenting agencies are being submitted very late. Even in some cases, reports have not been submitted

after 6 months of instrumentation and require early submission by Zonal Railways.

ANNEXURE 1

List of Identified Iron Ore Routes for Operation of BOXN Wagons Loaded up to CC+8+2t

S.N. Routes for running CC+8+2t loaded BOXN wagons

Railways Total Length (in Km)

WEF

1. Gua-Barajamda-Rajkharasawan-Sini-Chandil Gardhrubeswar-Joychandipahar-Damodar-Burnpur-Asansol

SER 273 May 05

2. Bondamunda-Sini-Adityapur SER 144 May 05

3. Bolanikhadan-Barajamda SER 15 May 05

4. Bondamunda-Barsuan SER 68 May 05

5. Bimalgarh-Kirburu SER 41 May 05

6. Bhilai-Dhalli Rajhara SECR 76 May 05

7. Damodar-Kalipahari SER, ER

15 May 05

8. Padapahar-Banspani SER 28 May 05

9. Bondamunda-Nugaon-Purnapani SER 19 May 05

10. Bhilai-Ahiwara SECR 7 May 05

11. Waltair-Kirandul Section (Commonly known as KK Line)

ECoR 476 May 05

12. Vosco-Hospet-Guntakul-Reningunta-Chennai

SWR, SCR, SR

894 May 05

13. Nugaon-Hatia-Muri-Bokaro SER 261 May 05

14. Purulia-Kotshila SER 36 May 05

15. Daitri-Kakhapura-Paradeep ECoR 180 May 05

16. Sambalpur/Titlagarh-Rayagada-Vijayanagaram-Vishakhapattanam

ECoR 503 May 05

17. Asansol-Kallipahari-Durgapur via slow lines only

ER 42 July 05

18. Swamihalli-Hospet SWR 59 July 05

19. Tornagalu-Ranjitpura SWR 23 July 05

20. Birmitrapur-Bonda Munda SER 27 July 05

21. Adityapur-Kharagpur-Pansukura-Halidia SER 250 Aug 05

22. Kharagpur-Rupsa-Bhadrak-Jakhapura SER, ECoR

227 Aug 05

23. Anara-Rukni-Bhaga SER 34 Aug 05

24. Anara-Adra SER 7 Dec 05

25. Lohardaga-Ranchi SER 72 Dec 05

26. Vyasarpadi-Chennai SR 7 Dec 05

27. Vyasarpadi-Korukkupet-Tondirpet-Attipattu-Ennoreport

SR 8 Dec 05

28. Guntkal-Samalkot-Kakinada SCR 649 Feb 06

29. Bondamunda-JSG-Raigarh-Kirorimalnagar SER, SECR

183 Feb 06

30. JSG-Samalpur ECoR 48 Feb 06

31. Durgapur-Bardhman (only DN slow line which is predominantly loading line)

ER 65 May 06

32. Koraputt-Rayagada ECoR 154 May 06

33. Adra-Midnapur SER 162 May 06

34. Manikpur-Jabalpur WCR 265 May 06

ANNEXURE 2

List of Identified Routes for Operation of BOXN Wagons Loaded up to CC+6+2t

S. No.

Routes for running CC+6+2t loaded BOXN wagons Railways

Total Length (in Km)

WEF

1. Rajur-Wani-Majri-CTPS CR 69 Nov 05

2. Rajur-Wani-Majri-Wardha-Badnera-Bhusawal-Nasik

CR 676 Nov 05

3. Ghugus-Tadali-CTPS CR 27 Nov 05

4. Ghugus-Tadali-Wardha-Badnera-Bhusawal-Nasik

CR 682 Nov 05

5. Gudhani-Amla-Ghora-Dongri-Sarani CR 239 Nov 05

6. Parasia-Junnaredeo-Amla-Ghora Dongri-Sarani CR 168 Nov 05

7. Talcher-Rajatgarh-Barang-Vijaynagaram-VSKP-BZA-Kondapalli

Ecor, SCR

881 Feb 06

8. Korba-Champa-BSP-APR-NKJ-Bina-Guna-Kota SECR, WCR

992 Feb 06

9. Chainpur-Barkakhana-Muri-Chandil-Adityapur ECR/SER 174 Feb 06

10. Talcher-ROU Ecor, SER

333 Feb 06

11. Bhanola-Andal-Bakreshwar ER 43 Feb 06

12. Pirpainti-Kahalgaon ER 20 Feb 06

13. Pirpainti-Farakka ER 113 Feb 06

14. Radhanagar-Santhaldih SER 59 Feb 06

15. Rajrappa/Barkakhana-Muri-Bokaro SER 120 Feb 06

16. Dugdha-Chandrapura-Bokaro SER 23 Feb 06

17. Jamadoba-BJE-Ananra-CNI-Tata SER 146 Feb 06

18. Bhelatand-Mahuda-TLE-Tudhadih-Bokaro SER 66 Feb 06

19. Sudamdih-BJE-TLE-Tudhadih-Bokaro SER 63 Feb 06

20. Khalari-Patratu ECR 36 Feb 06

21. Phusaro-Bokaro Thermal ECR 15 Feb 06

22. Patherdih-Pradhankanta-Gomoh-Chandrapura-Dugdha

ECR 77 Feb 06

23. Patherdih-Bhojudih ECR 7 Feb 06

24. Patherdih-Patherdih Washery ECR 5 Feb 06

25. Phusaro-Katras-Jarangdih-Chandrapura ECR 50 Feb 06

26. Khalari-Garhwa Road ECR 162 Feb 06

27. Ghughus-Chandrapura CR 35 Feb 06

28. Godhini-Wardha CR 85 Feb 06

29. Ballarshah-Chandrapura CR 24 Feb 06

30. Manuguru-GLE-Kothagudam ECR 49 Feb 06

31. Rudrampur-BDCR-Kothagudam ECR 14 Feb 06

32. Muncheryal-Ramagundam (Two block sections on the KZJ-BPQ main line

ECR 14 Feb 06

33. Talcher-Rajatgarh-Nirgundi-Paradeep EcoR 197 Feb 06

34. Talcher-Rajatgarh-Barang-Vijayanagarm-Simhadri

EcoR 510 Feb 06

35. Talcher-Kania (Talcher super Thermal Power Station

EcoR 7 Feb 06

36. Talcher-TTPS-Talcher EcoR 8 Feb 06

37. Talcher-Angul EcoR 15 Feb 06

38. Bhadrachalam-Dornakal SCR Feb 06

39. Dornakal-Kondapalli SCR Feb 06

40. Saenor-Khaperkheda SECR 15 Feb 06

41. Dumaro Khurd-Kanhan-Khaperkheda/Korardi SECR 20 Feb 06

42. Roha-Panvel-Diva-Vasai, Khandwa-Bhusawal CR 145 May 06

43. Khana Link-Kumedpur via Gomanik, Malda Town

220 May 06

Asnsol-Durgapur, Pradhankhunta-Asansol 94 May 06

44. GHD-Sonnagar, GHD-RNQ 100 May 06

Phusro-PKA via Kathras-Pathedih, Kathras-Nichitpur, Kusunda-Tetulmari

60 May 06

Dhanbad-Mughalsarai 402 May 06

45. VZM-RGDA-KRPU-JDB 500 May 06

SQQ-KIA-BHC 105 May 06

46. Delhi-Ambala, Mughalsarai-Ropar/Suratgarh via Zafarabad UTR-Moradabad, Mughalsarai-Tanda, Mughalsarai-Unchahar-GZB-DLI

1307 May 06

Palwal-TRD including third line, Delhi Area 60 May 06

47. Mughalsarai-Ghaziabad, Bina-Palwal NCR 1265 May 06

48. Barabanki-Goda-Gorakhapur-Chapra, Sitapur Cantt-Burhwat

NER 516 May 06

49. Parli-Vikarabad-Wadi-Raichur, Kazipet-Vikarabad, Dornakal-Kazipet

770.85 May 06

Paddapalli-Kazipet, Ramagundam-Pedapalli 112.61 May 06

50. MLDT-KDPR-NJP-NGC, NBQ-GLPT-NGC NFR 830 May 06

51. Mahuda-Bhaga-Bhojudih SER 28 May 06

52. Udhana-Jalgaon WR 307 May 06

53. Bina-Itarasi, Itarasi-Khandwa WCR 408 May 06

54. Itarasi-Goradongri CR 50 Sep 06

55. Panskura-Kolkata area terminals of ER via Dankuni

ER 30 Sep 06

56. BPQ-Manchiryal including MAGH-GDCR branch SCR 160 Sep 06

57. SYI-Karepalli SCR 10 Sep 06

58. Pendekallu-Gooty SCR 29 Sep 06

59. Jaggayapet-Motumarri SCR 26 Sep 06

60. Mohuda-Gomoh SCR 35 Sep 06

61. Cheoki-Manikpur WCR 100 Sep 06

62. Satna-Rewa WCR 50 Sep 06

63. Jabalpur-Itarasi WCR 245 Sep 06

64. Nasik-Kalyan CR 134 Sep 06

65. Wadi to NGSM via PA (inc Pune-Saswad) CR 605 Sep 06

66. Dornakal-Vijayawada SCR 126 Sep 06

67. Kirodimal Nagar-Ajani SECR 542 Sep 06

68. Aligarh-Harduaganj NCR 14 Sep 06

69. GMC-(Kanpur)-Paricha-Jhansi NCR 220 Sep 06

70. Manikpur-banda-GMC-Lucknow WCR 320 Sep 06

71. Raipur-Titlagarh-Vijaynagaram SECR/ ECoR

466 Sep 06

72. Rohtak-Bhiwani NWR 46 Sep 06

73. BPL-NAD-RTM-BRC-GNC-GIM WCR/WR 909 Feb 07

74. UDNA-BRC WR 139 Feb 07

75. MUNDRA-GIM WR 65 Feb 07

76. KDLP-GIM WR 12 Feb 07

77. HOM-MTDM SR 390 Feb 07

78. RC-GTL SCR 120 Feb 07

79. RENIKUT-SINGRAOULI-NKJ ECR 260 Feb 07

80. SSB-BTI-INCLUDING BY PASS NWR 287 Feb 07

81. MJ-RE-DLI NWR 499 Feb 07

82. ALD-ALY-BSB-SONAPUR-VIA CHAPRA NR 396 Feb 07

83. CNB-LKO NR 72 Feb 07

84. CPR-KIR-RAC-SCC NER 1097 Feb 07

85. GY-DMM-SGWF SCR 277 Feb 07

86. JTJ-SGWF SCR 125 Feb 07

87. CHORD LINE OF RAIPUR-MANDIR HASAUD ECoR 10 Feb 07

88. CHORD LINE OF SAMBALPUR-SAMBALPUR CITY

EcoR 5 Feb 07

89. Godhra-Anand WR 60

90. Kiul-Jhajha-Sitarampur ER/ECR 199 Mar 07

91. Ambala-Chandigarh NR 45 Mar 07

92. Sirhind-Ludhiana-Jammu NR 335 Mar 07

93. Ludhiana-Firojpur NR 110 Mar 07

94. Ludhiana-Dhuri-Sainthia NR 200 Mar 07

95. Andal-Siuri-Sainthia ER 127 Mar 07

96. Burdwan-Shaktigarh-Dankui-Dumdum-Cossipore Road/ Chitpur

ER 100 Mar 07

97. Dumdum-Baliganj-KP Docks-Bhagalpur ER 21 Mar 07

98. Shaktigarh-Bandel-Bongaigaon TPP/Titagarh ER 56 Mar 07

99. Gondia-Chanda Fort SECR 336 Mar 07

100. Naulakia-Surendranagar-Viramgam WR 212 Mar 07

ANNEXURE 3

Action to be taken on Bearing for running CC+8+2T/CC+6+2T axle Load

S.N.

Span

Existing fixed end/sliding bearings to be replaced

with

Minimum strengthening required at fixed end/sliding bearings for fitness at 60 Kmph

Without limiting T.E. With limiting

T.E. of 30t per loco

A. BGML Spans

1 30.5m (Under slung)

Drg. NumberCBS-2354

Strengthening to be done as per Drg. NumberCBS/2354

Safe

2 30.5 (Through type)

Drg. Number RDSO/B-1521

2 Number additional anchor bolts be provided and saddle bolts be replaced by higher strength bolts of property class 6.6.

Safe


Drg. No RDSO/B-1522


Safe


Drg. No RDSO/B-1523


Safe


Drg. No RDSO/B-1524

2 Number additional anchor bolts be provided.

2 number addition anchor bolts be provided

B. RBG Spans

1 30.5m (Under slung)

BA-11404 Alt.2

Strengthening to be done as per Drg. Number BA-11404 Alt.2

Safe


BA-11344 Alt.4

Existing bearing safe. Safe


BA-11364 Alt.3


Safe


BA-11324 Alt.3

2 Number additional anchor bolts be provided

Safe


B-1524 2 Number additional anchor bolts be provided

Safe

ANNEXURE 4

DETAILS OF SPEED CERTIFICATE PROCESSED FOR EFFECTING INCREASE IN THROUGHPUT

S. N.

Wagon Loading/ Axle Load

Provisional Speed Certificate

Speed certificate for conducting oscillation

trial

Final speed certificate

Total no. of speed

certificate

1 BOXN CC+4+2

MW/SPD/BG/BOXN /Prov. dt:25-10-05

MW/SPD/BG/BOXN/Osc./ 21.82t dt:27/3-10/11-05

2

CC+6+2

MW/SPD/BG/BOXN/Prov./22.32t dt:9/17-01-06

MW/SPD/BG/BOXN/ 22.32t/Osc. dt:9/17-1-06

MW/SPD/BG/ BOXN/22.32t dt:31-1-06

3

CC+8+2

MW/SPD/BG/BOXN/Prov.dt:25-10-05

MW/SPD/BG/BOXN/Osc./ 22.82t dt:27/3-10/11-05

MW/SPD/BG/ BOXN/22.82t/ Osc. dt:19/24-1-06

3

2

BOXN M1

CC+4+2

MW/SPD/BG/BOXNM1/Prov./21.82t & 22.82t dt:28-11-05

MW/SPD/BG/BOXNM1/Osc./ 21.82t dt:28-11-05

2

CC+6+2

MW/SPD/BG/BOXN M1/Osc./22.32t dt:13-02-06

MW/SPD/BG/ BOXNM1/Osc./22.32t dt:02-10-06

2

CC+8+2

MW/SPD/BG/BOXNM1/Prov./21.82t & 22.82t dt:28-11-05

MW/SPD/BG/BOXN M1/ Osc./22.82t dt:28-12-05

MW/SPD/BG/ BOXN M1/22.82t dt:25-04-06

3

3 BOXN HS M1

CC+6+2

MW/SPD/BG/BOXNHSM1/22.32t/Prov.dt:4-5-06

MW/SPD/BG/BOXN HSM1/22.32t/ Osc. dt:18-5-06

2

4

BCN CC+4+2

MW/SPD/BG/BCN/ Prov. dt:26-10-05

MW/SPD/BG/BCN/Osc./ 22.82t dt:27/3-10/11-05

2

CC+6+2

MW/SPD/BG/BCN/ 22.32t/Prov. dt:3-5-06

MW/SPD/BG/BCN/ 22.32t/Osc. dt:12-5-06

2

5 BCNA CC+4+2

MW/SPD/BG/BCNA/Prov.dt:26/16-10/11-05

MW/SPD/BG/BCNA/Osc./ 21.82t dt:27/3-10/11-05

2

CC+6+2

MW/SPD/BG/BCNA/22.32/Prov.dt:3-5-06

MW/SPD/BG/BCNA/22.32/Osc.dt:12-5-06

2

6 BCNA HS

CC+2+2

MW/SPD/BG/BCNAHS/Prov./21.32t dt:26-4-06

MW/SPD/BG/BCNA HS/Osc./ 21.32t dt:31-10-05

2

CC+4+2

MW/SPD/BG/BCNAHS/Osc./21.82t dt:31-10-04

MW/SPD/BG/BCNAM/ Prov/21.82t dt:1-12-05

2

7 BCNA HS M1

CC+4+2

MW/SPD/BG/BCNAHSM1/Prov./21.82t dt:1/8-12-05

MW/SPD/BG/BCNAHSM1/Osc./21.82t dt:1/8-12-05

2

CC+6+2

MW/SPD/BG/BCNAHSM1/22.32t/Prov. dt:3-5-06

MW/SPD/BG/BCNA HS M1/ 22.32t/Osc.dt:18-5-06

2

8 BCN M1

CC+4+2

MW/SPD/BG/BCN M1/Prov./21.82 dt:28-11-05

MW/SPD/BG/BCN M1/Osc./21.82 dt:25-11-05

2

CC+6+2

MW/SPD/BG/BCN M1/22.32/Prov. dt: 3-5-06

MW/SPD/BG/BCNM1/ 22.32/Osc. dt:12-5-06

2

9 BCNA M1

CC+4+2

MW/SPD/BG/BCNAM1/Prov./21.82t dt:23-11-05

MW/SPD/BG/BCNA M1/Osc./ 21.82t dt:25-11-05

2

CC+6+2

MW/SPD/BG/BCNAM1/Prov./22.32t dt:3-5-06

MW/SPD/BG/BCNAM1/ 22.32t/ Osc. dt:12-5-06

2

10 BOBR CC+6+2

MW/SPD/BG/BOBR/22.32t/Prov.dt:16-2-2006

MW/SPD/BG/BOBR/23.32t/Osc.dt:26-4-2006

2

11 BOBRN

CC+6+2

MW/SPD/BG/BOBRN/23.32t/Prov.dt:16-2-2006

MW/SPD/BG/BOBRN/ 22.32t/ Osc.dt:26-4-2006

2

12 BOBR M1

CC+6+2

MW/SPD/BG/BOBRM1/22.32t/Prov.dt:3-5-06

MW/SPD/BG/BOBRM1/22.32t/Osc.dt:10-5-06

2

13 BOBRN M1

CC+6+2

MW/SPD/BG/BOBRNM1/22.32t/Prov.dt:3-5-06

MW/SPD/BG/BOBRM1/22.32t/Osc.dt:10-5-06

2

14 BOST CC+6+2

MW/SPD/BG/BOST/22.32t/Prov.dt:5-5-06

MW/SPD/BG/BOST/22.32t/Osc.dt:18-5-06

2

15 BOSTM1

CC+6+2

MW/SPD/BG/BOSTM1/22.32t/Prov.dt:5-5-06

MW/SPD/BG/BOSTM1/22.32t/Osc.dt:18-5-06

2

16 BOST HS M1

CC+6+2

MW/SPD/BG/BOST HS M1/22.32t/ Prov.dt:5-5-06

MW/SPD/BG/BOST HS M1/ 22.32t/Osc.dt:18-5-06

2

17 BOXNHA

CC+8+2

MW/SPD/BG/BOXN HA/ 22.82t/Prov dt. 28-10-06

1

18 BOBYN

CC+6+2

MW/SPD/BG/BOBYN/ 22.32t/Prov. dt. 28-10-06

1

TOTAL 55

GOVERNMENT OF INDIA MINISTRY OF RAILWAYS - Indian...

Documents

Transcript of GOVERNMENT OF INDIA MINISTRY OF RAILWAYS - Indian...