Based on saturated-unsaturated soil seepage theory and finite element strength reduction theory,using numerical simulation method,the essay simulates slope stability condition with and without considering rainfall,calculates pore water pressure and displacement and other changes under rainfall condition,respectively calculates corresponding slope safety coefficient,and evaluates the slope stability.The analytical results will be some help for guiding highway slope safety design under rainfall condition.%基于饱和—非饱和渗流理论和有限元强度折减理论,利用数值仿真方法,模拟了不考虑降雨条件和考虑降雨条件两种情况下边坡稳定状况,计算了降雨条件下边坡的孔隙水压力、位移等的变化情况,分别计算了相应的边坡安全系数,并对其边坡稳定性进行了评价,其分析结果对降雨条件下公路边坡的安全设计具有指导作用。
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