PowerPoint Template

BANGALORE METRO RAIL PROJECT(BMRCL)

TRACK PLINTH INSTALLATION

ITD-ITD CEM Joint Venture

Same1ContentsMethod of Track Plinth Installation Technical InformationProject InformationMethod of Turnout Installation

Project Information

AirportProject : Bangalore Metro Rail Project (Phase 1 ) - Track works Owner : BMRC (Bangalore Metro Rail Corp. Limited)Consultant : RITES-OCCL-PBI-SYSTRA

Contract Value : Rs. 3,318 Million Rupees (Original Contract)

Duration : 22 September 2009 - 15 October 2012 = 160 weeks (Reach 1 : 22 September 2009 December 2010)

Scope of works : Supply, installation and test of railway tracks and 3rd rail (BMRCL supplies rails &turnouts and 3rd rail components)

Airport Supply of track Fastenings, Ballast, PSC sleepers, Buffer stops etc. Setting-out final alignment Welding by flash butt/ thermit Laying of ballastless track on Mainlines and in selected areas of depots Laying and tamping of ballasted track on mainline at Baiyappanahalli terminal beyond passenger platform and in maintenance depots Install third rail system (under supervision/supply of all items including tools by Power Supply Contractor)Testing and Commissioning

Contractors Scope of Works

AirportTechnical Information(Mainline, Elevated)

DescriptionsDetailsGaugeStandard Guage (1435 mm)TrackformBallastless Track : Track PlinthRail TypeUIC-60 (60 kg/m) Head Hardened RailRadius of Curve Horizontal : Minimum 117.9 m Vertical : Minimum 1500 mCant/Cant Def.Maximum Cant : 125 mmMaximum Cant Deficiency : 100 mmRail Inclination1:20 (towards the center line of track)Fastening SystemVossloh Fastening system 336Turnouts1:7, 140 m Radius with canted rails, Thick web switches and CMS crossings with welded legs1:9, 300 m Radius with canted rails, Thick web switches and CMS crossings with welded legsConstruction MethodologyTop down Construction

Airport

Full Assembly of Fastening System(VOSSLOH System 336)

Airport

Airport

Track Plinth(Mainline, Elevated)

Straight Track

Airport

Track Plinth(Mainline, Elevated)

Curved Track, cant 125

Airport

Method of Track Plinth InstallationSurvey WorksMarking Track Plinth Location, LWR Distribution & SupportingInitial Adjusting of Rail & Fastening Placement using dummy plate with holes for avoiding voids Rebar Placing & Placement of Stray Current ArrangementFinal Check Approval for ConcretingReplace Fastenings and LWR , Welding and De-stressing

Shuttering & Final Adjustment of Rails & Fastenings PlacementConcreting, Demouldling, CuringRemoval of Rails & Baseplates/Dummy plate, Finishing the Concrete Surface under Baseplate * Alumino -Thermic Welding

E10

Track Plinth InstallationSurvey Works

Traverse & Control Points working Transfer Coordinate to ViaductChecking for Centerline of Viaduct

Track Plinth InstallationSurvey WorksMarking Centerline of Track

Center line of Track & Track Plinth Edge are marked on viaduct surface

Track Plinth InstallationRail Distribution to Working Area

Distribution of Rails from Stocking AreaRails reaching to Working AreaRails Supported by Wooden

Track Plinth InstallationSupport Rails and Initial Adjustment

Supporting Rails by Rail Gauge Holding BarInitial Adjustment for Line & Level

Track Plinth InstallationFastening Placement & Rebars Fixing

Fastening Placement (Designed Locations)Rebars Fixing

Track Plinth InstallationRebar Fixing

Ensuring Continuity of Provision for Stray Current Protection

Track Plinth InstallationShuttering

ShutteringEnsuring on Concrete Covering

Track Plinth InstallationFinal Setting

Final Checking of Line & LevelFinal Checking of Track Gauge (1435mm)(Checking for cant at curved area)

Track Plinth InstallationFinal Setting

Final Checking of Rail Inclination(1:20)Adjusting for Rail Inclination

Track Plinth InstallationCleaning & Cover Fastenings

CleaningWraping Fastening System & Final Check Before Concreting

Track Plinth InstallationConcreting & Finishing

Preparing Concrete Pump & Installing Pipe for Concreting

Track Plinth InstallationConcreting & Finishing

Concreting & VibratingSurface Finishing

Track Plinth InstallationDemoulding & Concrete Curing

Demoulding after 24 hours & Concrete Curing

Track Plinth InstallationFinishing of Track Plinth CastingRemove Rails and Dummy Plate Underneath Base Plate

Method of Turnout Installation(Ballastless Track, Mainline)

1. Survey works2. Mark the center of straight track, Turnout track, and end point of Turnout3. Pre-assemble half-switch assemblies, crossing assembly and half check rail assemblies.4. Lay down the rail assemblies as underThe straight half-switch is laid first.Check the position of the plates according to marks on the foot of the stock rails.Ensure straightnessLay the curved half-switch and ensure squaring of the half switches at the end of the stock railsLay the crossing and ensure the correct distance between switch toe and point of crossing. Adjust the crossing, moving it forward or backwardLay the two external rails of the intermediate part as well as the closure rails to correct orientation5. Adjustment of the SwitchesAdjust the straightness and alignment of the overall Turnout with a string.Check the Track gauge in main track at every base plate and adjust the gauge by moving the curved half-switchCheck the Track gauge in the diverging Track at each base plate and adjust the gauge by moving the curved half switchPut clamp to fix the stock rail and switch rail together.

Method of Turnout Installation(Ballastless Track, Mainline)

6. Adjustment of the intermediate part and crossing.Check the gauge at every base plate and adjust by moving the crossingPut in straight closure rails as required and check gauge at every base platePut in place the curved closure rail and check versine at quarter points. Check the gauge at every base plate.Check the Track gauge in the diverging track and adjust by moving the external curved rails.7.Ensure that all fittings are in position. 8. Installation of reinforcement rebar work and Tube slip pipe for Signaling work9. Installation of shuttering work and included block out for point machine10. Final adjust top of rail to meet design parameter vertical alignment, Horizontal alignment, Gauge11.Cleaning work, plastic warp fastening, and Concreting after 24 hr. De-mold and curing12. Grouting by chemical non-shrink underneath base plate 13. Welding

Method of Turnout InstallationTool for Supporting and Adjusting

Typical installation of track gauge holding rail bar

Method of Turnout InstallationTool for Supporting and Adjusting

Supporting System

Turnout Installation

Provided Gap between Track SlabBlock out for Point Machine

Turnout Installation

Gap underneath Fastening SystemShall be Grouted by Non-Shrink GroutInstalled Crossover

Turnout Installation

Non-Shrink Grout under Pad

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