基于强度折减有限元法的边坡稳定性分析

摘要

将大型有限元软件ABAQUS与强度有限元法相结合，采用特征点位移增量的突变及塑性区的贯通作为边坡失稳破坏准则，对边坡失稳过程进行了数值模拟与分析，通过算例分析，并与Slope软件计算得到的安全系数进行对比，验证了该方法的合理性与可行性。%Combining large-scale finite software ABAQUS with strength reduction finite-element method,the paper takes displacing point increas-ing amount and plastic region connection as slope instability damage rules,carries out numerical simulation and analysis of slope instability process,through analysis example,compares its safety coefficient it with that of Slope software calculation method,and finally proves its rationali-ty and feasibility.