有限元分析中开挖释放荷载计算的讨论

Discussion of released loads in calculation of excavation by finite element method

针对采用有限元法进行开挖仿真分析中的释放等效荷载计算问题 ,比较了几种常见的计算方法 ,从有限元分析理论出发 ,给出了按单元积分计算开挖释放载荷的基本公式 ,这是一种方便的释放荷载计算方法 .

From the problems in calculation of excavating released equivalent loads by the finite element method, several familiar methods are discussed. Based on the finite element theory, integrating in elements or along element sides, basic formulas are set up to find the loads. The method is of convenience to use. Some personal opinions about the excavating released loads calculation are proposed.