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浅埋圆形夹杂附近半圆形沉积层对SH波的散射与地表位移
The ground motion of a semi-cylindrical alluvial valley above a subsurface circular structure impacted by SH waves
【摘要】 采用辅助函数思想,利用复变函数和多极坐标的方法给出地下浅埋圆形夹杂与地面上半圆形沉积层对SH波散射问题的解答。在求解过程中,采用“分区”和“契合”的方法,分别构造各“分区”的位移场和应力场,并在对应的“公共边界”上分别实施位移和应力连续条件,建立起求解该问题的无穷代数方程组,给出分析例题和数值结果,并对其进行讨论。
【Abstract】 By use of the idea of assistant function,the ground motion of a semi-cylindrical alluvial valley above a subsurface circular structure impacted by incident SH-wave is studied by complex function and multi-polar coordinate method.The displacement field and stress field of every"subarea" are formed by "subarea" methods during finding solutions and the algebras equations are set up by the condition of contiuous displacements and stresses on "common boundary".Finally,numerical examples and relative discussion are provided.
【关键词】 SH波散射;
半圆形沉积层;
浅埋圆形夹杂;
地表位移;
【Key words】 scattering of SH-wave; semi-cylindrical alluvial valley; subsurface circular structure; ground motion;
【Key words】 scattering of SH-wave; semi-cylindrical alluvial valley; subsurface circular structure; ground motion;
【基金】 国家自然科学基金资助项目(59578003);博士点基金资助项目(9521702)
- 【文献出处】 黑龙江工程学院学报 ,Journal of Heilongjiang Institute of Technology , 编辑部邮箱 ,2006年02期
- 【分类号】TU435
- 【被引频次】10
- 【下载频次】54