非关联流动极限分析中的变分原理

Variation Principles in Limit Analysis of Non-associated Flow Rule Materials

本文对服从非关联流动法则下的刚塑性极限分析问题,提出了参数势能变分原理和参数广义变分原理.它们适用于岩土类工程材料的极限分析问题.文中还以Mohr-Coulomb 准则为例分析了挡土墙主动土压力问题.

The parametric potential energy principle and the generalized pa-rametric variational principle are developed in the limit analysis of the non-associated flow rule materials.These new principles can be applied to suchfrictional materials as rock,soil,concrete,etc.An illustrated example isgiven of the problem of active pressure on retaining structures.