Civil and structural engineering design for the Elizabeth line station at Tottenham Court Road

Author: Jonathan Plant, Stephen Frost and Steve Roberts

Date published

2 July 2018

Price
Free
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Civil and structural engineering design for the Elizabeth line station at Tottenham Court Road

Tag
Author
Jonathan Plant, Stephen Frost and Steve Roberts
Date published
2 July 2018
Price
Free
The Structural Engineer
Author

Jonathan Plant, Stephen Frost and Steve Roberts

Citation

The Structural Engineer, Volume 96, Issue 7, 2018, Page(s) 52-62

Date published

2 July 2018

Author

Jonathan Plant, Stephen Frost and Steve Roberts

Citation

The Structural Engineer, Volume 96, Issue 7, 2018, Page(s) 52-62

Price

Free

This paper describes the civil and structural engineering design for Tottenham Court Road station on the Elizabeth line, principally of the Western Ticket Hall box.

Synopsis
The new Elizabeth line station at Tottenham Court Road, delivered by the Crossrail programme, has been an
exercise in interface management as well as a feat of engineering.

This paper describes the design carried out by the Arup Atkins Joint Venture (AAJV) under contract C134, principally of the Western Ticket Hall box. Nestled in Soho, this was developed within a dense urban grid and the constraints of a residential oversite development above.

The team worked closely with London Underground Ltd's engineers at the Eastern Entrance, which was delivered as part of London Underground’s own station upgrade works. 

The tunnel for the eastbound Elizabeth line passes through the Western Ticket Hall box, which also provided construction access for the sprayed concrete-lined platform and concourse tunnels. Access dates to the site meant that there was insufficient time to complete construction of the box before the arrival of the tunnel boring machine (TBM). Consequently, the need to complete the excavation became critical and the team adopted a bottom-up construction sequence for one of the deepest open shafts ever excavated in central London. The box, formed of elements of diaphragm walls and raft, was constructed before the TBM arrived, and the remaining internal elements completed afterwards.

Additional information

Format:
PDF
Pages:
52-62
Publisher:
The Institution of Structural Engineers

Tags

Underground structure Transport & its Infrastructure Project Focus Issue 7

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