CAJ | 학술논문

目前，用强度折减法分析边坡失稳的判据分析都是从边坡破坏的机理出发。本文从边坡破坏机理和有限元自身特点两方面出发，借助ABAQUS有限元软件对两个经典边坡实例进行计算，分析了三种判据的差异性和统一性。最后得出在有限元分析边坡稳定中，塑性区贯通和特征部位的位移发生突变这两种判据具有统一性；有限元计算不收敛与以上两种判据具有差异性；塑性区贯通在边坡破坏机理和有限元计算中存在差异性。
목전，용강도절감법분석변파실은적판거분석도시종변파파배적궤리출발。본문종변파파배궤리화유한원자신특점량방면출발，차조ABAQUS유한원연건대량개경전변파실례진행계산，분석료삼충판거적차이성화통일성。최후득출재유한원분석변파은정중，소성구관통화특정부위적위이발생돌변저량충판거구유통일성；유한원계산불수렴여이상량충판거구유차이성；소성구관통재변파파배궤리화유한원계산중존재차이성。
At present ,analysis criterion for slope instability with strength subtraction methods is based on the mechanism of slope failure .In this paper ,from two sides of the mechanism of slope failure and characteristics of finite element ,with two classical slope examples calculated by the finite element software ABAQUS ,the paper analyzes the diversity and unity of three kinds of criterion .Finally ,it is concluded that in finite element analysis of slope stability ,the connectivity of plastic area of the slope and the continuous displacement mutation have unity ;the convergence of numerical calculation and the above two criteria are different ;there are differences between the mechanism of slope failure and the finite element calculation based on connectivi-ty of plastic area of the slope .