【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。更多还原

【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.更多还原