Groundwater and ground movement around deep excavation

IF 0.3 Q4 ENGINEERING, GEOLOGICAL Geotechnical Engineering Pub Date : 2003-07-01 DOI:10.1680/GENG.2003.156.3.147
A. Pickles, S. W. Lee, B. A. W. Norcliffe
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引用次数: 10

Abstract

The Tsuen Wan West Station of Kowloon Canton Railway Corporation was constructed on both previously and recently reclaimed land. The project comprised approximately 600 m of cut-and-cover approach tunnels and a 400 m long station structure constructed in a 20 m deep excavation. Extensive instrumentation monitoring was carried out to monitor groundwater levels, ground movements and displacement of adjacent structures during the course of construction. This paper presents background information on the construction site and the monitoring results. It was found that the groundwater regime on the seaward side was strongly influenced by tidal movements throughout the monitoring period, whereas the landward groundwater regime showed a diminished tidal influence soon after construction of the diaphragm wall. Rock grouting carried out beneath the diaphragm wall was effective in mitigating drawdown of piezometric level outside the wall. The magnitude of the drawdown was found to be a function of diaphragm wall dept...
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深基坑周围地下水和地面运动
九广铁路公司荃湾西站是在以前和最近填海的土地上建造的。该工程包括约600米的切入覆盖引道和一个400米长的车站结构,在一个20米深的挖掘中建造。在施工过程中,进行了广泛的仪器监测,以监测地下水水位、地面运动和邻近建筑物的位移。本文介绍了施工现场的背景资料和监测结果。结果表明,在整个监测期内,向海侧的地下水受潮汐运动的影响较大,而向陆侧的地下水在连续墙建成后不久潮汐运动的影响减弱。连续墙下进行岩石注浆,可有效缓解墙外压力水平的下降。压降的大小是连续墙深度的函数。
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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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