Groundwater control for the Stratford CTRL station box

doi:10.1680/geng.2004.157.4.183

Groundwater control for the Stratford CTRL station box

Author: D. Whitaker ¹
Source: Proceedings of the ICE - Geotechnical Engineering, Volume 157, Issue 4, pages 183 –191 , ISSN: 1353-2618, E-ISSN: 1751-8563

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All our infrastructure is either on or in the ground. As a result, geotechnical engineering plays a key role in all major civil engineering projects in the UK and beyond.

ICE Proceedings: Geotechnical Engineering provides a forum for the publication of high quality, topical and relevant technical and practical papers covering all aspects of geotechnical research, design, construction and performance. The journal aims to be of interest to those civil, structural or geotechnical engineering practitioners wishing to develop a greater understanding of the influence of geotechnics on the built environment.

Geotechnical Engineering covers all aspects of geotechnical engineering including tunnelling, foundations, retaining walls, embankments, diaphragm walls, piling, subsidence, soil mechanics and geoenvironmental engineering. Presented in the form of reports, design discussions, methodologies and case records it forms an invaluable reference work, highlighting projects which are interesting and innovative.

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In this subject: Innovation Research, Sitework, Ground Engineering, Environment
By this author: D. Whitaker

An actively pumped groundwater control system has been installed to protect the Channel Tunnel Rail Link (CTRL) Stratford box against uplift. This structure is critical to the operation of the railway, and its integrity is dependent upon the effectiveness of the dewatering system. The reliability of the scheme is provided by a combination of the use of simple, proven, water industry technology and a robust power supply and control system. Quantitative risk assessment techniques were used to guide the design process and demonstrate the security of the system. Stratford is a location where groundwater levels have been rising, and the CTRL scheme will contribute to General Aquifer Research Development and Investigation Team (GARDIT) objectives of controlling groundwater level rise in central London.

Keywords: railway systems; groundwater; diaphragm walls
Document Type: Research Article
DOI: 10.1680/geng.2004.157.4.183
Affiliations: 1: Rail Link Engineering London

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Groundwater control for the Stratford CTRL station box