SH波在浅埋可移动圆柱形刚性夹杂处的散射与地震动

英文篇名：Scattering of SH-waves and ground motion by a shallow-embedded removable rigid cylindrical inclusion
中文刊名：地震工程与工程振动
英文刊名：Journal of Earthquake Engineering and Engineering Vibration
作者：杨在林 ; 孙柏涛 ; 刘殿魁
英文作者：YANG Zailin1 ; 2 SUN Baitao1 LIU Diankui2(1.Institute of Engineering Mechanics ; China Earthquake Administration ; Harbin 150080 ; China ; 2.School of Civil Engineering ; Harbin Engineering University ; Harbin 150001 ; China)
中文关键词：SH波散射 ; 弹性半空间 ; 可移动圆柱形刚性夹杂 ; 地震动
英文关键词：scattering of SH-wave ; elastic half space ; removable rigid cylindrical inclusion ; ground motion
出版日期：2008-08-15
机构：中国地震局工程力学研究所;哈尔滨工程大学建筑工程学院;
年：2008
期：04
出版单位：地震工程与工程振动

摘要

采用复函数、多极坐标法研究了含有可移动圆柱形刚性夹杂的弹性半空间对SH波的散射问题。构造一个能自动满足含可移动刚性圆柱的弹性半空间自由表面上应力为零的边界条件的散射波,应用可移动圆柱形刚性夹杂的运动条件来确定该散射波。最终则可将求解问题归结为求解一个无穷代数方程组,采用截断有限项的方法对其进行求解。给出了地表位移幅值的数值结果,并讨论了各种参数对它的影响。
The problem of SH-wave scattering,which is caused by a removable rigid cylindrical inclusion near the interface of elastic half space,is studied in this paper.The methods of complex variables and multi-polar coordinates are used here.The scattering wave function which can satisfy the condition of stress free on the horizontal surface around a removable rigid cylindrical inclusion in half space is constructed,and the expression of scattering wave can be determined by virtue of the boundary conditions of removable rigid cylindrical inclusion.The problem can be reduced to a solution of algebraic equations and solved numerically by truncating the finite terms of the infinite algebraic equations.Finally,the numerical results of horizontal surface displacement are given and discussed in the case of different parameters.

引文

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