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Home > Tunnelling work complete at Bank Station Upgrade

Tunnelling work complete at Bank Station Upgrade

Tris Thomas

Written by Tris Thomas on 29/10/2020 in News

Tagged:

Tunnelling work at London Underground’s Bank Underground Station upgrade has been completed, marking a major milestone in the project. The tunnelling – carried out by contractor Dragados, with design consultancy Dr Sauer & Partners – forms part of the programme to expand the size of the station by 40%, has seen more than 1.3km of tunnels constructed since May 2017.

Bank

The project to enlarge the station has involved constructing a new southbound running tunnel for the Northern line, with the existing tunnel to be converted into a passenger concourse with six new cross passages linking to the platforms on either side.

Three new escalator barrels have also been excavated to link the Northern line to the DLR and to the new entrance that is being built on Cannon Street, and a new link tunnel will connect the Northern and Central lines.

Stuart Harvey, Transport for London’s (TfL’s) Director of Major Projects, said: ‘Bank Tube station is a crucial link between many lines and is one of the busiest interchanges on the Tube network. Work restarted on site again in May and this is a huge milestone for the project.

‘Once completed, there will be more space underground for customers to change from one line to another making journeys quicker and more comfortable for those travelling into the City.’

The tunnelling has seen more than 200,000 tonnes of material excavated from under the City of London, one of the most historic areas of the country.

The work was often intricate and great care was taken to avoid disrupting any of the 31 listed buildings along the route of the new running tunnel.

With space at such a premium above ground, extra space was excavated below ground to store spoil and allow workers to continue to carry out their work.

Part of the tunnelling work saw the project team cut through deep-level piled foundations of one building, which required careful excavation and the installation of a new load-support system to support the existing foundations while still allowing a tunnel to pass through them.

By the end of winter, the civil work on the new station entrance on Cannon Street will also be completed, with work on the new platforms also well underway.

Once completed, the new parts of Bank Tube station will greatly increase the space available in the station and reduce journey times considerably.

New moving walkways will connect customers from the Northern line to the Central line, and the new entrance will provide direct access to the Northern line.

TJ visited the site and produced this full technical report in December 2018/January 2019

https://tunnellingjournal.com/archive/tunnelling-journal-december-2018/?highlight=bank+&whatPage=18

 

 

Dr. Sauer & Partners

Tunnelling work at London Underground’s Bank Underground Station upgrade has been completed, marking a major milestone in the project. The...

More Information | london@dr-sauer.com | +44 (0) 208 339 7090

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