Dynamic Response of a Half-Space with Defeats subjected to an Elastic Wave

• Main Authors: Liao, Wen-I, 廖文義
• Other Authors: Chau-Shioung Yeh
• Format: Others
• Language: zh-TW
• Published: 1997
• Online Access: http://ndltd.ncl.edu.tw/handle/06421738875442433703

博士 === 國立臺灣大學 === 土木工程學系 === 85 === This thesis presents the dynamic response of a half-space with defeats subjected to an elastic wave. The main contents includes the dynamic responsesof canyons and alluvial valleys subjected to seismic waves. Other application problems are includes, such as dynamic response of a rigid foundation, dynamicresponse of a cavity and a shell subjected to incident wave. In the exterior region the scattered wave field is constructed with linear combination of independent sets of high order Lamb''s singular solutions. For the difficults of numerical integration in wavenumber domains arise from the high order singular solutions, we presents the modified steepest descent method to overcome those problems. The diffracted wave field of interior region is constructed by the similar series but integrated along different pathes. The unknown coefficients of these series are determined by the least square method or T matrix method.