2.5D scattering of incident plane SV waves by a canyon in layered half-space

被引：26

作者：

Ba Zhenning ^{[1
,2
]}

Liang Jianwen ^{[1
]}

机构：

[1] Tianjin Univ, Dept Civil Engn, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Key Lab Coast Civil Struct, Minist Educ, Tianjin 300072, Peoples R China

来源：

EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION | 2010年 / 9卷 / 04期

基金：

中国国家自然科学基金;

关键词：

layered half-space; canyon; plane SV wave; amplification; scattering; surface layer; indirect boundary element method; BOUNDARY-ELEMENT METHOD; ARBITRARY SHAPE; RAYLEIGH-WAVES; DIFFRACTION;

D O I：

10.1007/s11803-010-0040-2

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a 2.5D scattering of incident plane SV waves by a canyon in a layered half-space by using the indirect boundary element method (IBEM). A free field response analysis is performed to provide the displacements and stresses on the boundary of the canyon where fictitious uniform moving loads are applied to calculate the Green's functions for the displacements and stresses. The amplitudes of the loads are determined by the boundary conditions. The free field displacements are added to the fictitious uniform moving loads induced displacements and the total response is obtained. Numerical calculations are performed for a canyon with homogenous and in one layer over bedrock. The effects of the thickness and stiffness of the layer on the amplification are studied and discussed.

引用

页码：587 / 595

页数：9

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