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水库蓄水和暴雨是导致千将坪滑坡的主要因素。根据三峡水库一期蓄水方案和库区暴雨情况,利用有限元模拟库水位在90～135m波动和降雨时千将坪滑坡的暂态渗流场,将计算得到的暂态孔隙水压力分布用于滑坡的极限平衡分析,得出边坡稳定系数与库水位上升的关系。研究表明:水库蓄水特别是蓄水初期对边坡稳定性有很大的影响。
Reservoir water storage and heavy rain are the main factors that led to the Qian-Ping landslide. According to the first-stage water storage scheme of the Three Gorges Reservoir and the rainstorm in the reservoir area, the finite element method was used to simulate the transient seepage field of the Qian-ping landslide at 90-135m reservoir water level and rainfall, and the calculated transient pore water pressure distribution was applied to Landslide limit equilibrium analysis, draw the slope stability coefficient and the relationship between reservoir water level rise. The research shows that the reservoir water storage, especially the initial storage, has a great influence on the slope stability.