時間領域境界要素法による3次元埋込み剛基礎の動的応答解析

概要

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Recently, the boundary element method based on boundary integral equation has been applied to soil structure interaction problems. In spite of an increasing number of boundary element analysis on dynamic response problems, most of them are restricted in frequency domain and only few works on the time domain analysis exist. In this paper, dynamic responses on two typical problems are analyzed by using three-dimensional time domain BEM. They are: (1) the dynamic response of a semi-circular canyon induced by SV waves and (2) the one of three- dimensional embedded rigid foundations induced by SH waves. For the latter example two numerical procedures on the past effects are proposed. The obtained results are compared with other solutions and some considerations are added to the obtained results. As conclusions . it is made clear that the present method for dynamic analysis is very efficient and produces good results with an acceptable accuracy.
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