基于ABAQUS的某土石坝坝坡稳定性分析

研究土石坝的稳定性,加强水利工程建设管理,对工程建设质量控制具有重要意义。论文以某土石坝为例,采用ABAQUS内嵌的强度折减法基于摩尔库仑本构模型对某土石坝进行稳定性计算,得出下游坝坡的安全系数和潜在滑裂面。研究表明:强度折减法运用到土石坝的坝坡稳定性计算是可行合理的,潜在滑裂面符合一般土石坝滑动面的变形规律,安全系数为1.40,该土石坝在蓄水期是稳定的。

Analysis of Slope Stability of Earth-Rock Dam Based on ABAQUS

Studying the stability of earth-rock dam and strengthening the management of water conservancy project construction is of great significance to the quality control of engineering construction.Taking an earth-rock dam as an example,the paper uses the strength reduction method embedded in ABAQUS to calculate the stability of an earth-rock dam based on the Molar Coulomb constitutive model,and obtains the safety factor and potential slip surface of the downstream dam slope.The results show that the strength reduction method is feasible and reasonable to calculate the stability of earth-rock dam slope,and the potential slip surface conforms to the deformation law of the general slip surface of earth-rock dam,and the safety factor is 1.40.The earth-rock dam is stable during the impoundment period.