摘要
应用辅助函数思想与复变函数、多极坐标法研究了在平面SH波作用之下,含圆形孔洞的半圆形凸起地形与其附近的圆形孔洞的相互作用问题.通过理论求解,得出了问题的解析解答,文中最后给出了具体算例,讨论了地表位移幅值、浅埋圆孔及凸起所含圆孔的动应力集中系数.结果表明:浅埋圆孔的存在一定程度上存在减震作用,而凸起所含圆孔的存在却将削弱模型的刚度,应该引起足够的重视.
A study was performed on the interaction between a semi-cylindrical hill with homocentric hole above a subsurface cavity while impacted by SH-wave. Assistant functions, functions of complex variables, and a multipolar coordinate method were used to discover an analytical solution. Numerical examples are provided to discuss the amplitude of displacement on the surface, as well as the dynamic stress concentration factor （DSCF） around the subsurface cavity and the homocentric hole. It is concluded that the existence of the subsurface cavity can decrease ground motion, while the homocentric hole decreases the model＇s stiffness, which should be considered while designing.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2005年第5期608-613,共6页
Journal of Harbin Engineering University
关键词
SH波散射
辅助函数
含孔半圆形凸起
浅埋圆孔
动应力集中系数
scattering of SH-wave
assistant functions
semi-cylindrical hill with homocentric hole
subsurface cavity
dynamic stress concentration factor （DSCF）
