Scattering wave field around a cavity with circular cross-section embedded in saturated soil using boundary element method

作     者：张鸿 高谦 徐斌 

作者机构：School of Civil and Environmental EngineeringUniversity of Science and Technology Beijing School of Civil Engineering and ArchitectureNanchang Institute of Technology 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2013年第20卷第11期

页      面：3296-3304页

核心收录：

学科分类：08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Projects(50969007,51269021) supported by the National Natural Science Foundation of China Projects(20114BAB206012,20133ACB20006) supported by the Natural Science Foundation of Jiangxi Province of China 

主　　题：saturated soil boundary integral equations wave scattering dynamic stress concentration Green's function 

摘      要：Based on Biot’s theory and considering the properties of a cavity,the boundary integral equations for the numerical simulation of wave scattering around a cavity with a circular cross-section embedded in saturated soil are obtained using integral transform *** Cauchy type singularity of the boundary integral equation is *** effectiveness of the properties of soil mass and incident field on the dynamic stress concentration and pore pressure concentration around a cavity is *** results are in good agreement with the existing *** numerical results of this work show that the dynamic stress concentration and pore pressure concentration are influenced by the degree of fluid–solid coupling as well as the pore compressibility and water permeability of saturated *** increased degree of fluid–solid coupling,the dynamic stress concentration improves from 1.87 to 3.42 and the scattering becomes more *** decreased index of soil mass compressibility,the dynamic stress concentration increases and its maximum reaches *** dynamic stress concentration increases from 1.64 to 3.49 and pore pressure concentration improves from 0.18 to 0.46 with decreased water permeability of saturated soil.