Dynamic response of a non-circular lined tunnel with visco-elastic imperfect interface in the saturated poroelastic medium

被引：32

作者：

Fang, Xue-Qian ^{[1
]}

Jin, He-Xin ^{[1
]}

机构：

[1] Shijiazhuang Tiedao Univ, Dept Engn Mech, Shijiazhuang 050043, Peoples R China

来源：

COMPUTERS AND GEOTECHNICS | 2017年 / 83卷

基金：

中国国家自然科学基金;

关键词：

Non-circular lined tunnel; Saturated poroelastic medium; Visco-elastic interface; Conformal transformation method; Dynamic stress; CIRCULAR CAVITY; WAVES; SCATTERING;

D O I：

10.1016/j.compgeo.2016.11.001

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A semi-analytical method is proposed to investigate the dynamic response of a non-circular tunnel with visco-elastic imperfect interface in poroelastic medium. Biot's dynamic theory is used to simulate the saturated poroelastic medium, and the governing equations are solved by reducing them into three Helmholtz equations that the potential functions satisfy. The visco-elastic interface model with elastic and viscosity coefficients is adopted to analyze the interface effect around the non-circular lined tunnel. The analytic solutions of displacements and stresses are expanded in terms of wave functions. Some numerical examples are provided to analyze the effect of visco-elastic interface on the dynamic stress around the tunnel. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：98 / 105

页数：8

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