APM Scottish conference - 2016

1. //
QUEEN STREET STATION
TUNNEL/THROAT DEVELOPMENT
Association of Project Management
Scottish Conference - 8th September 2016
15-Sep-16
Rodger Querns
Programme Director, Network Rail

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Contents
► Queen Street Station Scope of works
► Key Facts
► Challenges
► Good Practice
► What’s 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 – History
► 1838 - 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 ambitious engineer responsible for many Scottish railways,
devised the route and saw to the construction of the E&G Railway, Scotland's first main line,
to its opening on 18 February 1842.
► The Cowlairs incline at 1 in 42 was worked
as an inclined plane from Queen Street
station until 1909. It was powered by
stationary steam engines from an engine
house at the summit at Cowlairs.
Existing cable pulley system

4. /
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

5. Advance Works
Activity Date
Trial breakout of tunnel slab Dec 2014
Cable Rationalisation & Diversion Jan 2016
Cowlairs incline cut-off drain Mar 2016
Remote Controlled Concrete BreakersConcrete Cutting and Coring

6. /
Scope of Works – Cowlairs Track Renewals
► Renewal 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

7. /
Scope of Works – Tunnel Slab Track Renewals
► Removal 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.

8. /
Tunnel Slab Track Renewal
Before After

9. /
Slab Track Renewal Methodology
Concrete break out using remote controlled breakers
Construction sequence as follows:
► Remove rails
► Saw cut slab
► Core slab
► Break slab with hydraulic splitters
► Remove waste via engineering trains
► Trim formation
► Install formwork
► Construct base slab
► Install precast OBB Porr units
► Install rails and line and level
► Place infill grout
► Remove formwork

10. /
Tunnel Slab Track Renewals – Up line
Up line reinforcement InstallationUp line Concrete Break Out
Up line OBB Porr Installation Up line Complete

11. /
Tunnel Slab Track Renewals – Dn Line
Dn line Concrete Break Out Dn line Complete

12. /
Tunnel Slab Track Renewals
L to R: Phil Verster, Humza Yousaf, Rodger Querns
at the tunnel opening

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Station Throat and Platforms
March – Demolition underway August – Works complete

14. /
Queen Street Station – Platforms/Throat
Methodology
Platform Demolition
► Demolish 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

15. /
Station Throat and Platforms
Completed throat and platforms works

16. /
8 Car Extension
15-Sep-16
Platform well excavation
Mass polystyrene fill to platform wells
Extension 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.

17. /
8 Car Extension
15-Sep-16
Gate Line re-installedPlatform Wells Resurfaced

18. /
Signalling Renewals
New Signal Gantry
Platforms 3 & 4 Signals
► New 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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OLE
15-Sep-16
► Platforms - 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 OLE
Installation of OLE Conductor bar in tunnel

20. Key Facts
► £60 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

21. Challenges
► Water 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

22. Good Practice
► High Street Environment (Construction Site):
• Larger Resource Pool
• Financial 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 2016
Collaborative Programme Board

23. Good Practice
► Induction Process:
• Robust process including D&A screening and briefing of site specific risks
• 2500 individuals inducted (150 visitors)
► Passenger Communication:
• Viewing platform
• Time Lapse video screen
• Alliance traffic marshals
• Regular social media updates
► Stakeholder Engagement
• Weekly meetings with key stakeholders
• Curfews on noisy works

24. ►

25. Safety
► Network 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.

26. In the news

27. 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