岩体稳定性的极限分析方法——刚体-弹塑性夹层模型

Limit Analysis Method in Stability of Rock Slopes——Rigid Bodies-elasto-plastic Seams Model

本文提出一种适用于块状岩体结构的计算模型——刚体-弹塑性夹层模型,它根据岩体的实际结构将岩体离散成刚性元(岩块)和弹塑性夹层(软弱结构面)。本文还在此基础上提出了用有限元定量评价岩体稳定性的另外一种方法——极限分析法,给出了衡量岩体稳定性的相应指标——极限乘子。

Based on the real construction of rock structur,the rigid bodies-elasto-plaatic model,in which the rock structure are divided into a number of rigid elements and elasto- plastic seams,is proposed.In this model,the rigid elements and the elasto-plastic sea- ms are used to simulate the rock masses and joints respectively.Moreover,the limit analysis method,another method for evaluating the stability of rock structure,is pres- ented Numerical examples are given for illustrating the efficiency of this model.