岩土工程学报2016，Vol.38Issue(6)：1117-1124,8.DOI:10.11779/CJGE201606019
横观各向同性层状地基上埋置刚性条带基础动力刚度矩阵求解
Solution of dynamic stiffness matrix for rigid strip foundations embedded in layered transversely isotropic soil
摘要
Abstract
A precise algorithm is proposed to evaluate the dynamic stiffness matrix of the rigid strip foundation embedded in layered transversely isotropic soil. The space transformation method is used to obtain the dynamic displacement response of arbitrary nodes at the surface or in the layered transversely isotropic soil. Then the dynamic flexibility matrix of the nodes in the excavation scope is established. Finally the flexible volume method is introduced to evaluate the dynamic stiffness matrix of the rigid strip foundation. The proposed method solves the dynamic flexibility coefficients of the layered soil in the frequency-wave number domain by using the precise integration method, and there is no limit to the number and thickness of layers. In addition, the computation is based on the matrix algebra with small dimension, and the computation is always stable with high efficiency. Numerical examples demonstrate the accuracy and the wide applicability of the proposed method to the layered transversely isotropic soil.关键词
横观各向同性/层状地基/精细积分算法/埋置刚性条带基础/动力刚度矩阵Key words
transverse isotropy/layered soil/precise integration method/embedded rigid strip foundation/dynamic stiffness matrix分类
建筑与水利引用本文复制引用
韩泽军,林皋,周小文,李建波..横观各向同性层状地基上埋置刚性条带基础动力刚度矩阵求解[J].岩土工程学报,2016,38(6):1117-1124,8.基金项目
国家自然科学基金青年科学基金项目（51508203）；中央高校基本科研业务费面上项目（2015M020）；博士后科学基金项目 （）
