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Project Stories | Construction of the sprayed concrete lining (SCL) lift shaft, adit tunnel and cross passage


About Project

The Vauxhall Station Upgrade Project consists of congestion relief and Step Free Access (SFA) works to improve passenger flow and accessibility for Vauxhall Station on London Underground’s Victoria Line. The upgrade scheme includes the construction of an approximately 15-meter (50-foot) deep Sprayed Concrete Lining (SCL) lift shaft, which will be constructed from within the existing station structure with access to the shaft provided by a pedestrian subway. At the platform level, a new SCL adit tunnel and cross passage will be constructed between the existing cast iron platform tunnels. With this approach, expensive and time consuming utility relocation will be avoided. Permeation grouting will be performed to limit groundwater inflow into the shaft excavation from the nearby River Thames.


Finished Cross Passageway

Cross-section of the two lane tunnel


Project Name

Vauxhall Station Upgrade


London, UK

Construction Period

2013 – 2018


Bechtel Ltd.


Gall Zeidler Consultants


Gall Zeidler Consultants (GZ) designed the SCL lift shaft and adit tunnel, both of which are constructed using SCL techniques. By taking advantage of the existing sheet piles and the geometry of the existing structures, the design has demonstrated that the adjacent structures and utilities will be minimally influenced by the underground works.


3D Rendering of new SCL shaft and tunnels

3D Rendering of new SCL shaft and tunnels


3D mesh for new SCL shaft and cross passages

3D mesh for new SCL shaft and cross passages




👉 Relevant project 

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👉 Click here to see the case study webinar


Topics Project Application Tunnel



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