Scattering of plane Rayleigh waves by circular-arc alluvial valleys with saturated soil deposits and water layer
具有饱和土沉积层的充水河谷对平面瑞雷波的散射

An analytic solution of two-dimensional scattering and diffraction of plane Rayleigh waves by circular-arc alluvial valley with saturated soil deposits and water was presented.The Fourier-Bessel series expansion technique was used with the deposits simulated by the Biot dynamic theory for saturated porous media,the half space assumed to be elastic single-phase media,and the water in the valleys simulated by perfect fluid.Numerical results are given to show the displacement amplitudes on the valley floor.The analytical results show that some surface displacement amplitudes of the valley floor are amplified to more than 4 times,and it changes with the location of the observation points apparently.