Design and construction of a deep shaft for Crossrail

IF 0.3 Q4 ENGINEERING, GEOLOGICAL Geotechnical Engineering Pub Date : 2004-10-01 DOI:10.1680/GENG.2004.157.4.173
P. Morrison, A. McNamara, T. Roberts
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引用次数: 10

Abstract

An 8·2m diameter, 40m deep shaft for Crossrail is being constructed below the 10m deep basement of the Moorhouse development near Moorgate in the City of London. The depth of the shaft is such that it will penetrate through stiff London Clay and will be founded at the bottom of the Lambeth Group. The shaft is being constructed after the Moorhouse structure has been completed and the design of the Moorhouse foundations places tight constraints on acceptable ground movements due to construction of the shaft. Furthermore, the shaft needs to be designed to accommodate future ground movements associated with construction of Crossrail. The paper describes the complex relationship between the foundations of Moorhouse, the draught relief shaft and the future Crossrail assets. The optimised design includes extensive slip coating and base grouting of the Moorhouse piles, a complex temporary works dewatering system around the shaft and the option to carry out additional dewatering from within the shaft during constr...
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横贯铁路深井的设计与施工
在伦敦金融城摩尔盖特附近的摩尔豪斯开发项目10米深的地下室下面,正在建造一条直径8.2米、深40米的Crossrail竖井。竖井的深度是这样的,它将穿透坚硬的伦敦粘土,并将建立在兰贝斯集团的底部。竖井是在Moorhouse结构完成后建造的,而Moorhouse地基的设计严格限制了由于竖井建设而产生的可接受的地面移动。此外,竖井的设计需要适应与横贯铁路建设有关的未来地面运动。本文描述了Moorhouse地基、泄风竖井和未来横贯铁路资产之间的复杂关系。优化设计包括广泛的滑动涂层和Moorhouse桩的基础灌浆,井周围复杂的临时工程脱水系统,以及在施工期间从井内进行额外脱水的选择。
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来源期刊
Geotechnical Engineering
Geotechnical Engineering ENGINEERING, GEOLOGICAL-
CiteScore
0.50
自引率
0.00%
发文量
0
期刊介绍: The objectives of the Association shall be the promotion of co-operation among geotechnical societies in SE Asia; and the assistance to member societies who have limited number of members. Now there is only one combined web titled: AGSSEA-SEAGS. SEAGS & AGSSEA encourage the submission of scholarly and practice-oriented articles to its journal. The journal is published quarterly. Both sponsors of the journal, the Southeast Asian Geotechnical Society and the Association of Geotechnical Societies in Southeast Asia, promote the ideals and goals of the International Society of Soil Mechanics and Geotechhnical Engineering in fostering communications, developing insights and enabling the advancement of the geotechnical engineering discipline.
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