King's Cross/St Pancras station mono-pile tower crane foundation

Author: R. Stroscio (Tony Gee & Partners) J. Worthington (Balfour Beatty Civil Engineering) W. Kesse (Laing O'Rourke)

Date published

26 September 2012

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Standard: £10 + VAT
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King's Cross/St Pancras station mono-pile tower crane foundation

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Author
R. Stroscio (Tony Gee & Partners) J. Worthington (Balfour Beatty Civil Engineering) W. Kesse (Laing O'Rourke)
Date published
26 September 2012
Price

Standard: £10 + VAT
Members/Subscribers: Free

The Structural Engineer
Author

R. Stroscio (Tony Gee & Partners) J. Worthington (Balfour Beatty Civil Engineering) W. Kesse (Laing O'Rourke)

Citation

The Structural Engineer, Volume 90, Issue 10, 2012, Page(s) 7

Date published

26 September 2012

Author

R. Stroscio (Tony Gee & Partners) J. Worthington (Balfour Beatty Civil Engineering) W. Kesse (Laing O'Rourke)

Citation

The Structural Engineer, Volume 90, Issue 10, 2012, Page(s) 7

Price

Standard: £10 + VAT
Members/Subscribers: Free

The construction of the Northern Ticket Hall (NTH) formed part of the overall redevelopment of London Underground’s King’s Cross/St Pancras station. A static tower crane was required to service the largely top down construction works. Due to the limited access and particular site constraints, the tower crane had to be located within the area to be excavated. To address the specific site requirements, an innovative foundation was developed comprising a single large diameter (2.1m) steel tubular mono-pile installed from the existing ground level and founded principally into the underlying London Clay. As the steel tube would be eventually exposed down to the underside of the ticket hall base slab, the pile was designed as a free-standing cantilever with limited allowable movements that would meet the crane’s safe operating requirements. This paper describes the geotechnical and structural design challenges of an unusual tower crane foundation, as well as the particular construction and operational requirements.

Additional information

Format:
PDF
Pages:
7
Publisher:
The Institution of Structural Engineers

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Project Focus Issue 10

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