基于Monte-Carlo法的非饱和边坡稳定性分析

基于Monte-Carlo法，从概率的角度研究了非饱和边坡的稳定性，讨论了边坡稳定安全系数随土（岩）层材料参数随机性的变化规律。应用一个算例对比了考虑基质吸力和不考虑基质吸力对边坡稳定性的影响，结果表明，考虑基质吸力所计算的稳定安全系数较大，与实际情况相符合，同时地下水位升降幅度也是影响边坡稳定的重要因素。

Stability Analysis of Unsaturated Slope Based on Monte-Carlo Method

The stability of unsaturated slope is studied from the viewpoint of probability based on Monte-Carlo method.The law of random change in the safety coefficient of slope stability with the parameters of soil(rock) stratum materials is discussed.A real calculation case is used in the comparative study of the effect on the slope stability between with and without taking into consideration of matrix suction.It is shown that the result of the calculation that has taken into consideration matrix suction has a greater stability safety coefficient and accords with the real conditions.Meanwhile,the change in the underground water table is also an important factor that influences the slope stability.