Ground movements due to deep excavations in Shanghai: Design charts

被引：37
作者：
Bolton M.D. [1 ]
Lam S.-Y. [2 ]
Vardanega P.J. [3 ]
Ng C.W.W. [4 ]
Ma X. [5 ]
机构：
[1] Department of Engineering, University of Cambridge, Cambridge
[2] Advanced Geomechanics, Perth, WA
[3] Department of Civil Engineering, University of Bristol, Bristol
[4] Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong
[5] Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai
来源：
Frontiers of Structural and Civil Engineering | 2014年 / 8卷 / 3期
关键词：
design charts; dimensionless groups; excavations; mobilizable strength design; Shanghai;
D O I：
10.1007/s11709-014-0253-y
中图分类号：
学科分类号：
摘要：
Recent research has clarified the sequence of ground deformation mechanisms that manifest themselves when excavations are made in soft ground. Furthermore, a new framework to describe the deformability of clays in the working stress range has been devised using a large database of previously published soil tests. This paper aims to capitalize on these advances, by analyzing an expanded database of ground movements associated with braced excavations in Shanghai. It is shown that conventional design charts fail to take account either of the characteristics of soil deformability or the relevant deformation mechanisms, and therefore introduce significant scatter. A new method of presentation is found which provides a set of design charts that clarify the influence of soil deformability, wall stiffness, and the geometry of the excavation in relation to the depth of soft ground. © 2014 Higher Education Press and Springer-Verlag Berlin Heidelberg.
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页码：201 / 236
页数：35
相关论文
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