Seismic response and damage of underground subway station in a slightly sloping liquefiable site

被引：24

作者：

Chen, Su ^{[1
]}

Wang, Xu ^{[2
]}

Zhuang, Haiyang ^{[2
,3
]}

Xu, Changjie ^{[3
]}

Zhao, Kai ^{[2
]}

机构：

[1] China Earthquake Adm, Inst Geophys, Beijing 100124, Peoples R China

[2] Nanjing Tech Univ, Inst Geotech Engn, Nanjing 210009, Jiangsu, Peoples R China

[3] East China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang 330013, Jiangxi, Peoples R China

来源：

BULLETIN OF EARTHQUAKE ENGINEERING | 2019年 / 17卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Underground structure; Sand liquefaction; Slightly sloping ground; Ground lateral movement; Numerical simulation; Shaking table test; SHAKING TABLE TEST; OFFSHORE BREAKWATER; LIQUEFACTION; MODEL; SAND;

D O I：

10.1007/s10518-019-00705-1

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Sand liquefaction-induced lateral flow has caused the destruction of a large number of buildings. In this work, an overall time-history numerical simulation is conducted to study the nonlinear dynamic interaction of soil with an underground structure buried in a slightly sloping liquefied foundation. Firstly, the consistency between the numerical simulation and model test results is verified. Then, the influence law of the ground inclination angle on the liquefaction distribution of the foundation around an underground structure reveals that the soil liquefaction at the lateral side of the underground structure is alleviated but is aggravated severely in the soils under the subway station. Additionally, the dynamic uplifting behavior and the seismic damage of the underground structure are different from those in a horizontally layered liquefied foundation. The rotation response and asymmetrical seismic damage of an underground structure in a slightly sloping liquefied foundation need attention.

引用

页码：5963 / 5985

页数：23

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