Effects of Tunneling on Underground Infrastructures
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In urban cities like Shanghai, the increasing need for urban tunnelling to serve the ever-growing population in space-constrained cities will result in part of the proposed tunnelling route running close or beneath infrastructures, such as pipelines and buildings founded on shallow or pile foundations. The ground volume losses due to the over-excavation of the tunnel result in ground, subsurface and lateral movements. These ground movements, result in additional stress and deformation on the existing infrastructures. Thus, a type of displacement control methods has been developed and widely applied to the risk assessment of the infrastructures subjected to tunneling. This paper will fully review the existing studies on the displacement control methods and their results to conclude critical responses of various infrastructures, provide effective methods of evaluating the responses for practical engineering.
KeywordsTunnelling Pipeline Pile foundation Raft foundation
The authors wish to express their gratitude to the National Key R&D Program of China (Grant No. 2016YFC0800200), the National Natural Science Foundation of China (Grant No. 51738010) and Singapore Housing and Development research grant on tunnel-foundation interaction (Grant No. R-302-000-086-490) for the financial support.
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