Abstract
An Indirect Boundary Element Method that uses the full-space Green's function is proposed for the calculation of in-plane seismic response of irregularly stratified media with buried interfaces extended infinitely. The method uses the solution for horizontally stratified media obtained by the Thomson-Haskel propagator matrix method in the wavenumber domain as the reference solution. A recursive matrix operation is introduced to solve the boundary integral equations, which in turn facilitates the calculation of multi-layer problems, preventing excessive requirements of computer main memory. The proposed formulation efficiently eliminates non-physical waves due to numerical truncation.
