Delivering the Bank Station Capacity Upgrade Project Innovation - - PowerPoint PPT Presentation

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delivering the bank station capacity upgrade project
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Delivering the Bank Station Capacity Upgrade Project Innovation - - PowerPoint PPT Presentation

May 17, 2023 131 likes •354 views

Delivering the Bank Station Capacity Upgrade Project Innovation through Collaboration Cate Anthony (Dr. Sauer & Partners) and John Comins (Dragados) Bank Station Capacity Upgrade Safely together Agenda Bank Station Capacity

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Bank Station Capacity Upgrade Safely together

Delivering the Bank Station Capacity Upgrade Project Innovation through Collaboration

Cate Anthony (Dr. Sauer & Partners) and John Comins (Dragados)

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Agenda

  • Bank Station Capacity Upgrade
  • Collaboration at Bank
  • Combined Lining Design
  • Pile Load Transfer Structures
  • SCL Replacing Squareworks
  • Option A Joint
  • Construction Progress
  • Challenges and Successes on Site
  • Productivity
  • Resources and Equipment
  • Current and Upcoming Works
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Bank Station Capacity Upgrade Safely together

Bank Station Capacity Upgrade

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Bank Station Capacity Upgrade

Triple escalators provide direct link from Central line to Northern line level Former southbound Northern line platform tunnel re-used to increase circulation and interchange space for customers Moving walkway in new tunnel provides greater capacity whilst reducing walking distances and interchange times New entrance to Bank station on Cannon Street. Lifts and triple escalators from street to Northern line and DLR New Southbound railway tunnel and platform for Northern line to create more space for customer circulation

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Design Philosophy – Tier 2 Engagement

Sketch Draft Design Compliance Submission IDC IFC SCL DETAILED DESIGN SCL DETAILED DESIGN Final Design

Joseph Gallagher Tier 2 Tunnels Dr Sauer Tunnel Designer Dragados Tier 1 London Underground

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Bank Station Capacity Upgrade Safely together

Combined Lining Design

  • Approximately 15% saving in lining thickness
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Bank Station Capacity Upgrade Safely together

SCL Replacing Squareworks

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Bank Station Capacity Upgrade Safely together

SCL Replacing Squareworks

Existing assets Construction sequence New SCL tunnels

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Bank Station Capacity Upgrade Safely together

SCL Replacing Squareworks

Mechanised Excavation and Support Faster and Safer Larger Working Envelope Improved Waterproofing

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Option A Joint

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Construction Progress so far

Start AST shaft sinking November 2016 Start Tunnelling May 2017

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Construction Progress so far – Central & WBS

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Challenges and Successes – Site Establishment

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Challenges and Successes – AST Shaft Sinking

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Resources and Equipment - Excavation

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Resources and Equipment – Concrete Supply

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Resources and Equipment – Dust & Ventilation

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Productivity

Tunnel Dia Shift m/day (ave.) Comment NL RT & pilot 4.9m 12hr 8hr 2.0 2.7 Full Face Including initial plant chamber NL Platform 9.8m 12hr 8hr 1.2 1.5 TH - INV Enlargement from pilot CP3 8.2m 1.3 TH - INV CL-MW 7.7m 1.8 TH - INV

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Current Works – Waterproofing

  • PVC and Mapelastic spray membranes
  • 2 layer system
  • Mapelastic is water based, supplied premixed

and dust free

  • Waste is minimised and it is simple to spray
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Upcoming works

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Thank you for your attention