论文部分内容阅读
利用线性边界元法研究弹性半空间中P、SV波的传播问题。在积分方程中使用了两维频域全空间格林函数。在文中使用了线性单元,对积分的奇异性进行了处理,通过引入静力基本解,解决了奇异积分的计算问题,采用离开局部场地适当处截断的方法处理无穷远边界问题。通过算侧验证了本文所述方法的可行性与正确性,对典型地质条件进行了时程分析。
Propagation of P and SV Waves in Elastic Half Space Using Linear Boundary Element Method. Two-dimensional frequency-domain full-space Green’s function is used in the integral equation. Linear units are used in the paper to deal with singularities of integrals. By introducing static basic solutions, the problem of calculating singular integrals is solved, and the problem of infinity boundaries is solved by truncating the local sites appropriately. The feasibility and correctness of the method described in this paper are validated by calculation, and the time history analysis of typical geological conditions is carried out.