三维横观各向同性土体开挖问题有限层求解

Finite layer analysis of three-dimensional excavation problem of transverse isotropic soil

首先探讨了有限层法求解开挖问题的难点:开挖等效荷载的有限层表达和开挖后刚度矩阵的有限层计算,并在此基础上建立了三维横观各向同性土体开挖问题的有限层求解格式,并编制了相应的计算程序。计算结果同实测值一致性证实了方法的正确性和有效性。

Difficult points of finite layer analysis of three-dimensional excavation problem: finite layer expression of equivalent excavation load and finite layer calculation method of rigidity matrix after excavation, are discussed. Based on these, calculation method of finite layer of three-dimensional excavation problem of layered transverse isotropic soil is presented and programmed. The agreement of results of calculation with measurement shows the efficiency and validity of the method.