Scattering phenomena of scatter by obliquely incident wave in half-space

• Main Authors: Tsai, I-Chang, 蔡宜璋
• Other Authors: Chau-Shioung Yeh
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/21429100728422861591

博士 === 國立臺灣大學 === 土木工程學系研究所 === 86 === A direct boundary element method to analyze the steady state responses of tw o-dimensional scattersby obliquely incident wave in half-space is presented. T he scatters may be a cylindrical canyon, cavityor alluvial valley with arbitra rily shaped cross section. For alluvial valley, the exterior (half-space)and i nterior (alluvium) boundary integral equations are used in modeling the proble m and the substructureformulation is employed to analyze the responses. The as sociated Green''s functions of half-space are usedin integral formulations. The results show that the proposed technique is accurate and reliable and there- fore can be used to study the ground motion at irregular sites.