Teaspoon Tunneling: Underground’s Station Upgrade Project

Kurt Zeidler

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Stakeholders

Bechtel Ltd, UK – Prime D&B Contractor Gallagher Group, UK – Shaft & Tunnel construction Weston Williams, UK – Architect Atom, UK – Lift Structural Designer Bechtel Ltd, UK – M&E, Fire, Communications Gall Zeidler Consultants-UK Ltd - Shaft and Tunnel Design

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Agenda Contents 1. Project Introduction 2. Original Station Construction 3. Tender Design 4. SCL Design 5. Site Set-Up 6. Construction 7. Conclusions

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Map

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Vauxhall Area

Telecom Water Sewer Gas

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Vauxhall Underground Station

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 2. Original Station Construction

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Tender Design – Roof Demolition

Bin Store

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Tender Design – Proposed Lift Shaft

Bin Store

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 SCL Design

Bin Store

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 5. Site Set-Up

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Gantry Crane

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Shaft Excavation

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Ring Beam Installation

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Tunnel Top Heading Excavation

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Waterproofing & Secondary Lining

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Completed Final Lining

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Completed Final Lining

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Secondary Lining – Shaft

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 SCL Secondary Lining Finish

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Connection to Platform Tunnels

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Connection to Platform Tunnels

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 8. Conclusions

• Vauxhall posed logistical challenges associated with tunneling in an urban environment. • Innovative construction techniques minimized surface disruption and utility relocation. • Coordinating with stakeholders is critical to project success. • Close coordination between designer and contractor led to efficient design adaptations during construction.

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016 Thank you for your attention!

Vauxhall Station Upgrade Project - Kurt Zeidler Singapore – 11 November 2016