20.03.06dedicated freight corridor by chahatey ram cbe/er
TRANSCRIPT
![Page 1: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/1.jpg)
20.03.06 Dedicated Freight Corridor
ByCHAHATEY RAMCBE/ER
![Page 2: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/2.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- GENERAL
Sectional speed to be 160 kmph
Formation and bridges to be fit for HM Loading
Ruling gradient to be 1 in 150 Curves not to be sharper than 1 degree
![Page 3: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/3.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS -GENERAL
Maximum moving dimensions to cater to widest future stock and double stack containers
Quality assurance to be separated from execution & to be entrusted to 3rd party – NHAI case
Speed on turnouts to be 50 kmph
![Page 4: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/4.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS -GENERAL
Twin single line while entering/ leaving metros
![Page 5: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/5.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- TRACK
Take care of points which bother maintenance engineers
![Page 6: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/6.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- TRACK
TURN OUTS Can’t eliminate them, reduce them
HOW? Only one x-over at each station Only one loop at a station, alternately on UP and DN side
![Page 7: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/7.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- TRACK
LEVEL CROSSING
Eliminate them
HOW ?
Provide grade separators
![Page 8: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/8.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- TRACK
SEJs
Reduce them - station to station LWRs
Improve them – Use improved design
![Page 9: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/9.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- TRACK
GLUED JOINTS
Eliminate them
HOW?
Jointless track circuit
![Page 10: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/10.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- TRACK
WEAK FORMATION Good quality construction, follow
RDSO guidelines for earthwork Emulate NHAI example Take safety measures against
boulders falling & slope failures in high cuttings-adequate cess width, 1:1 slope, pucca drains
![Page 11: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/11.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- TRACK
BALLAST DEFICIENCY
Fully automated mega ballast depot to cater to the whole corridor, Rly to obtain lease, ballast contract for long period say 10 years with customised PVC
![Page 12: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/12.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS- TRACK
FREQUENT RENEWAL OF FITTINGS Have fittings of such design & quality so that uniform life of track (sleeper & fittings) can be achieved- only complete track renewal should be required
![Page 13: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/13.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS - BRIDGES
Training- Every person (Rly & contractor) in assigned job
Design theme to be the least LCC , ease of maintenance & not the initial cost
All bridges to have ballasted decks
![Page 14: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/14.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS (BRIDGES)
ROBs to be bearingless (framed structures)
Use continuous spans and fully welded girders for economy in capital as well as maintenance cost
![Page 15: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/15.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS (BRIDGES)
Use large span in perennial rivers to avoid/ reduce UWI of piers
Use strip seal expansion joints at ROBs wherever unavoidable
Provide inbuilt remote condition monitoring of bridges during construction itself
![Page 16: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/16.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS (BRIDGES)
Steel girders – corten steel, metallising for enhanced durability
![Page 17: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/17.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS (BRIDGES)
Design to cater for inspection, monitoring and maintenance How to measure camber in PSC girders of large spans
Lifting points of jacks for release/ replacement of bearings
![Page 18: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/18.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS (BRIDGES)
Working area & access at piers
Inspection of PSC box girders from inside
How to inspect very tall piers
![Page 19: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/19.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS (BRIDGES)
Concrete bridges
High performance concrete (HPC)
Self compacting concrete (SCC)
![Page 20: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/20.jpg)
20.03.06 Dedicated Freight Corridor
CONSTRUCTION ASPECTS (BRIDGES)
Use of concrete pump & batching plant to be made compulsory even for minor bridges for enhanced durability
Protective coating to all concrete surfaces
![Page 21: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/21.jpg)
20.03.06 Dedicated Freight Corridor
MAINTENANCE PRACTICES - TRACK
Decide maintenance system, organisation, dedicated fixed time corridor blocks; wokshop, track machines,conveyance & communication for P. Way engineers
![Page 22: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/22.jpg)
20.03.06 Dedicated Freight Corridor
MAINTENANCE PRACTICES - TRACK
Maintenance to be outsourced for long term say 10 to 15 years
![Page 23: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/23.jpg)
20.03.06 Dedicated Freight Corridor
MAINTENANCE PRACTICES - TRACK
USFD TESTING
Use high speed SPURT car capable of recording at 70 kmph
EMAT technique to be used
![Page 24: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/24.jpg)
20.03.06 Dedicated Freight Corridor
MAINTENANCE PRACTICES - BRIDGE
Separate organisation for inspection in view of high level of expertise required- inhouse or outsourced
Separate organisation for repairs and strengthening- to be outsourced for 10 to 15 years
![Page 25: 20.03.06Dedicated Freight Corridor By CHAHATEY RAM CBE/ER](https://reader030.vdocument.in/reader030/viewer/2022032612/56649eb15503460f94bb6dc3/html5/thumbnails/25.jpg)
20.03.06 Dedicated Freight Corridor
MAINTENANCE PRACTICES - BRIDGE
Rail inspection vehicle a must Detailed Inspection and Repairs
Manual to be provided by construction agency
Have disaster management of bridges in place right at the end of construction
Release at least 5% elastomeric bearings every year