Scattering of Seismic Surface Waves in Anisotropic Geomechanical Media

9313578李这项研究的目的是：1.发展各向异性介质中面波的散射理论，2.发展一种数值计算散射波场的算法，并对波的散射进行直接的计算模拟，以及3.进行物理超声实验，以更好地了解各向异性介质中的散射机制。所提出的理论方法将基于各向异性横向均匀半空间远场格林函数的Born近似和并矢表示的组合。将进行物理超声实验，以确定散射理论的正确性。***

9313578 Lee The objectives of this study are: 1. to develop a scattering theory for surface waves in anisotropic media, 2. to develop an algorithm for numerical calculation of the scattered waves fields and to perform direct computational simulation of the scattering of waves, and 3. to perform physical ultrasonic experiments to obtain improved insight and understanding of the scattering mechanisms in anisotropic media. The proposed theoretical approach will be based on the combination of the Born approximation and the dyadic representation of the far field Green's function for an anistropic laterally homogeneous half- space. Physical ultrasonic experiments will be performed to ascertain the validity of the scattering theory. ***