首页|Determining the cause of tunnel damages during tunneling in silty clay
Determining the cause of tunnel damages during tunneling in silty clay
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NSTL
Elsevier
? 2022 Elsevier LtdThis paper presents a case study of investigating the cause of tunnel damages during tunneling in silty clay, in which the damages are existed in both ground surface and tunnel lining. The study is implemented by field investigation and numerical back analysis to determine the cause of tunnel damages, in which the field observed funnel-shaped surface subsidence of ground and surrounding soil moving to the tunnel are considered as softening soil body from ground surface until surrounding rocks in the numerical model, and the material parameters of the field monitored softening soil body are respectively taken as 0.8 times and 0.6 times of the original ones. This work confirms that the field observed tunnel damages during tunneling in silty clay can be numerically simulated, which is significantly influenced by the field monitored softening soil body from ground surface until surrounding rocks.
CauseField investigationNumerical back analysisTunnel damagesTunneling in silty clay
Liu J.、Zhang Y.、Yuan M.、Zhao Y.、Yang J.
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School of Civil Engineering Nanjing Forestry University No. 159 Longpan Road
College of Civil Engineering Yancheng Institute of Technology No. 1 Xiwangdadao Road
School of Civil Engineering Central South University
NSTL
Elsevier
