School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing,100044,China;
School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing,100044,China;
Institute of Mechanics,Chinese Academy of Sciences,Beijing,100080,China;
School of Civil Engineering,The University of Sydney,Sydney,NSW 2006,Australia;
Biot's dynamic theory; Saturated porous media; Three-dimensional scattering; Hemispherical alluvial valley;