摘要
研究了弹性半空间中半圆形凸起与凹陷相连地形对SH波的散射问题.采用“契合”的方法,在2个区域中分别构造满足边界条件的位移解,通过移动坐标,在“公共边界”上实施“契合”,并同时满足半圆形凹陷表面上应力自由的边界条件,从而建立起求解该问题的无穷代数方程组.计算的数值结果表明凹陷的存在对半圆形凸起地表位移有明显的影响.
The scattering of SH-waves by a semi-cylindrical hill and a semi-cylindrical canyon in elastical half-space was studied. Using ＂conjunction＂, displacement solutions that meet the boundary conditions were constructed in the two half spaces respectively. By moving coordinates, the two domains were conjoined to satisfy the ＂conjunction＂ condition and the boundary condition of the semi-cylindrical canyon, and then a set of infinite algebraic equations about the problem were obtained. The results of calculations are presented to show the influence of the semicylindrical canyon on the ground motion of the hill.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2007年第4期392-397,共6页
Journal of Harbin Engineering University
关键词
SH波散射
半圆形凸起
半圆形凹陷
契合
移动坐标
scattering of SH-wave
semi-cylindrical hill
semi-cylindrical canyon
conjunction
moving coordinates
