Study on dynamic response of saturated soft clay under the subway vibration loading I: instantaneous dynamic response

被引：19

作者：

Ren, Xingwei ^{[1
]}

Tang, Yiqun ^{[1
,2
]}

Xu, Yiqing ^{[3
]}

Wang, Yuandong ^{[1
]}

Zhang, Xi ^{[1
]}

Liu, Sha ^{[1
]}

机构：

[1] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China

[2] Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China

[3] Zhejiang Shuren Univ, Urban Construct Coll, Hangzhou 310015, Zhejiang, Peoples R China

来源：

ENVIRONMENTAL EARTH SCIENCES | 2011年 / 64卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Subway vibration loading; Wave equation; Space-time solution; Filed dynamic monitoring; Laboratory GDS test; VISCOELASTIC HALF-SPACE; PROPAGATION; NOISE;

D O I：

10.1007/s12665-011-1000-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this paper, the results of the instantaneous dynamic response of saturated soft clay under the subway vibration loading are presented. Based on the assumption of soil as viscoelastic medium, wave equation under forced vibration of three-dimensional anisotropy is derived, and time-space domain semi-analytical solution is given through Laplace and Fourier transform and their inverse transform using MATALB. Taking Shanghai metro line No. 2 for example, the dynamic monitoring is conducted with embedded earth pressure gauges and pore piezometers around the tunnel, and the horizontal response amplitude of dynamic stress of soil around the tunnel is calculated by the method presented in this paper with the laboratory Global Digital System test apparatus to determine the related calculation parameters. Then, a comparative analysis is made between calculation result and continuous field monitored data, and it is found that the attenuation trend of the two cases agree well with each other both in the horizontal and vertical direction, which indicates that the method presented in this study is reasonable.

引用

页码：1875 / 1883

页数：9

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