Queen Street Blockade Programme

QUEEN STREET STATIONTUNNEL/THROAT DEVELOPMENTAssociation of Project ManagementScottish Conference - 8th September 2016

15-Sep-16Rodger QuernsProgramme Director, Network Rail

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/ContentsQueen Street Station Scope of works

Key Facts

Challenges

Good Practice

Whats next?

Services resume two days early (5th August 2016) as the 08.45 Edinburgh to Glasgow Queen Street train arrives

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Queen Street Station History1838 - John Leadbetter, the Glasgow linen merchant, saw to the obtaining of the Act of Parliament for the E&G and who was relentless in raising capital for the railway.

1838 to 1842 - John Miller, the ambitiousengineer responsible for many Scottish railways, devised the route and saw to the construction of the E&G Railway, Scotland's first main line, toits opening on 18 February 1842.

The Cowlairs incline at 1 in 42was worked as an inclined plane from Queen Street station until 1909. It waspowered by stationary steam engines from an engine house at the summit at Cowlairs.

Existing cable pulley system

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Queen Street Station Works Why required? Deterioration of existing concrete slab track (life expired - in place for 40 years)

Electrification of the line through the tunnel heightened the need for the work as the faster speeds achieved by electric trains would accelerate the deterioration of the slab

Reconfiguration of the station throat and platforms to accommodate 7-car rolling stock

These works necessitated a 20 week closure of the tunnel and station

Passengers increase from 20-28m by 2030

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Advance WorksActivityDateTrial breakout of tunnel slabDec 2014Cable Rationalisation & Diversion Jan 2016Cowlairs incline cut-off drainMar 2016

Remote Controlled Concrete BreakersConcrete Cutting and Coring

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Scope of Works Cowlairs Track RenewalsRenewal of the South and West Junction,

Renewal of 3km of plain line,

Installation of 250m of new 6 drain and renewal of 50m of Scottish Water sewer.

Kirow Crane utilised during track renewals

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Scope of Works Tunnel Slab Track RenewalsRemoval of 10,000 tonnes of existing concrete slab,

Removal of 500 tonnes of rock,

Installation of new twin track OBB Porr slab track system through the tunnel (918m),

Installation of 4 new units of S&C,

Installation of new drainage,

Installation of 4000m of new rail,

Installation of 2km of OLE conductor bar and OLE wires.

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Tunnel Slab Track Renewal

Before

After

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Slab Track Renewal MethodologyConcrete break out using remote controlled breakersConstruction sequence as follows:

Remove railsSaw cut slab Core slabBreak slab with hydraulic splittersRemove waste via engineering trainsTrim formationInstall formworkConstruct base slabInstall precast OBB Porr unitsInstall rails and line and levelPlace infill groutRemove formwork

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Tunnel Slab Track Renewals Up line

Up line reinforcement InstallationUp line Concrete Break OutUp line OBB Porr InstallationUp line Complete

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Tunnel Slab Track Renewals Dn LineDn line Concrete Break OutDn line Complete

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Tunnel Slab Track Renewals

L to R: Phil Verster, Humza Yousaf, Rodger Querns at the tunnel opening

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Station Throat and PlatformsMarch Demolition underwayAugust Works complete

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Queen Street Station Platforms/Throat Methodology

Platform DemolitionDemolish and remove existing platforms

Construct OLE & signal bases

Install new track drainage system

Install new duct routes to the existing platforms

Construct platform foundations, build walls and place infill

Install copes, tactiles and surfacing

Install platform lighting and CCTV

Platform Reconstruction

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Station Throat and Platforms

Completed throat and platforms works

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8 Car Extension15-Sep-16

Platform well excavationMass polystyrene fill to platform wellsExtension of 8-car wells into concourse and reinstatement of concourse for next phase of station development.

Methodology:Breakout and excavation of existing concourse at Platforms 3 / 4 & 5 / 6, Create new foundations for platform walls,Build new platform walls,Mass polystyrene fill,Concrete slab reinforcement,Floor paint application.

/8 Car Extension15-Sep-16Gate Line re-installed

Platform Wells Resurfaced

/Signalling RenewalsNew Signal Gantry

Platforms 3 & 4 SignalsNew dispatch equipment fitted on all Platforms,

New signal gantry structure for Platforms signals,

Telecoms changes,

All existing track circuits from the Edinburgh end of the tunnel to the buffers replaced with new axle counters,

Installation of new prefabricated Signalling Equipment Room

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OLE15-Sep-16Platforms - Provision of fixed tension traditional fixed contact catenary system. Supported by headspans in the train shed,

Tunnel 2km of New Furer & Frey Conductor bar system installed,

Completed Station OLEInstallation of OLE Conductor bar in tunnel

/Key Facts60 m expenditure over 20 weeks, represents 3m per week burn rate,

More than 500,000 man hours worked,

139 days of continuous working,

2900 individuals working on the Project

150 Visitors on site

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ChallengesWater Management Rock Removal

Concrete Pouring Methodology (for new base slab)

Logistics

Preventing complacency

Late change introduced by signal sighting

Constrains of city centre worksite

Queen Street Compound

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Good PracticeHigh Street Environment (Construction Site):Larger Resource PoolFinancial Savings

Daily Programme Integration Meetings: Programme Integration Board

Robust Shift Handover Meetings:Highlighting daily priorities and safety notices

Managing Visitors on site:Site Eye camera footage (3x Tunnel, 1 x Platforms)Bi-weekly escorted visitor slots

Mark Carne Visit June 2016Collaborative Programme Board

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Good PracticeInduction Process:Robust process including D&A screening and briefing of site specific risks2500 individuals inducted (150 visitors)

Passenger Communication:Viewing platformTime Lapse video screenAlliance traffic marshals Regular social media updates

Stakeholder EngagementWeekly meetings with key stakeholdersCurfews on noisy works

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SafetyNetwork Rail 365 Safety Bus,

Safety Stand Downs,

Dedicated Safety Managers on site 24/7,

Robust Induction Process,

Health Monitoring for staff,

Fatigue Management using DataScope,

Safety inspections per shift.

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In the news

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What's next?Redevelopment of Queen Street Station front,

Introduction of new electric fleet,

Full 8-car service introduced.

Further electrification of Scotland routes

Artist Impression - Queen Street Station

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