地震学报2012，Vol.34Issue(6)：785-792,8.DOI:10.3969/j.issn.0253-3782.2012.06.005
弹性层状半空间中无限长洞室对斜入射平面SH波的三维散射(Ⅰ)——方法及验证
3D scattering of obliquely incident SH waves by a cylindrical cavity in layered elastic half-space(Ⅰ):Methodology and verification
摘要
Abstract
3D scattering of obliquely incident plane SH waves by a cylindrical cavity in a layered half-space is studied using indirect boundary element method. The validity of the approach is verified by comparison with other papers on this subject. Comparison with models used in engineering shows that the 3D scattering problem cannot be simply decomposed into in-plane and out-of-plane 2D problems, and the simple handling may bring about large errors. The effect of obliquely incident angle on the scattering is also studied, and the result shows that obliquely incident angle has a significant effect on 3D scattering.关键词
弹性层状半空间/无限长洞室/斜入射/平面SH波/三维散射/放大作用Key words
layered elastic half-space/ cylindrical cavity/ obliquely incident/ plane SH wave/ 3D scattering/ amplification分类
天文与地球科学引用本文复制引用
梁建文,陈健琦,巴振宁..弹性层状半空间中无限长洞室对斜入射平面SH波的三维散射(Ⅰ)——方法及验证[J].地震学报,2012,34(6):785-792,8.基金项目
国家自然科学基金项目(50978183,50908156)和教育部博士点基金项目(200800560046)资助. （50978183,50908156）
