接触面参数对挡土墙边坡稳定性的影响分析

为考虑接触面参数对挡土墙边坡稳定性的影响,采用有限元极限分析软件OPTUMG2建立了边坡数值模型,分析了接触面的黏聚力及内摩擦角对挡土墙边坡稳定性的影响规律。研究结果表明,随着接触面黏聚力及内摩擦角的增加,挡土墙边坡的下、上限安全系数都逐渐增加,但是接触面内摩擦角对挡土墙边坡稳定性的影响更大。研究结果可为挡土墙的设计提供一定参考依据。

In order to study the influence of contact surface parameters on retaining wall slope stability, the finite element limit analysis software OPTUM G2 is used to establish the numerical model.And then the influence of cohesion and internal friction angle of contact surfaceon the slope stability is analyzed.The results show thatthe lower and upper limit safety factors of retaining wall slopes all gradually increasewith the increase of the cohesion and internal friction angle.But the internal friction angle of contact surface has more influence on the retaining wall slope stability. The research results can provide some reference for the design of retaining walls.