摘要
Abstract
Some problems have not still been solved smoothly in slope stability analysis using shear strength reduction finite element method until now.Different equivalent area Drucker-Prager yield criteria,such as DP1,DP2,DP3 and DP4 yield criteria,can give an approximate estimation of soil failure strength under two and three-dimensional slope stability analyses condition,and the slope stability coefficient was calculated.Coming to different discount coefficients in the generalized plastic strain slope development,it can be able to simulate the failure process of slope.And the calculation result is compared with the result calculated by using the traditional limit equilibrium method,it shows that the three-dimensional finite element analysis conforms to the reality more than two-dimensional finite element analysis,whereas the DP3 yield criterion,which can carry out more real calculation,will give a better simulate slope failure mechanism.关键词
强度折减法/边坡稳定性/Drucker-Prager屈服准则/安全系数Key words
strength reduction method/slope stability/Drucker-Prager failure criteria/safety factor分类
交通工程
