The IBIEM Solution to the Scattering of Plane SV Waves around a Canyon in Saturated Poroelastic Half-Space

The scattering of plane SV waves by a two-dimensional canyon in saturated poroelastic half-space is investigated both in frequency and time domain by indirect boundary integrate equation method (IBIEM), and the amplification effect of displacement and fluid pore pressure are thoroughly discussed. It illustrates that the scattering characteristic strongly depends on the incident frequency and angle, soil porosity, boundary drainage condition, and canyon shape. Compared with the incidence of P waves, the amplification effect is not so large for critical porosity, but more obvious amplification feature can be found for incident SV waves at the critical angle.