Ground motion at canyons of arbitrary shape under incident sh waves
Ground motion at canyons of arbitrary shape under incident sh waves
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DOI：
10.1002/eqe.4290070505
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发表时间：
1979-09
影响因子：
4.5
通讯作者：
F. Sánchez-Sesma;E. Rosenblueth
中科院分区：
文献类型：
--
作者：
F. Sánchez-Sesma;E. Rosenblueth
提出了一种计算任意形状峡谷入射SH波二维散射的方法。用边界外有积分路径的第一类Fredholm积分方程来表示问题。采用了点源离散化和最小二乘方案。数值结果与已知的半圆柱形峡谷解析解进行了比较。对于三角形和半周期正弦峡谷，也计算了地表振幅的空间变化。
A method for calculating the two‐dimensional scattering of incident SH waves by canyons of arbitrary shape is presented. The problem is formulated in terms of a Fredholm integral equation of the first kind with the integration path outside the boundary. Point‐source discretization and a least‐squares scheme are used. Numerical results are compared with the known analytic solution for a semi‐cylindrical canyon. Spatial variations of surface amplitudes are computed for triangular and half‐cycle sinusoidal canyons as well.