高坝泄洪雾化雨入渗是影响其水垫塘边坡稳定的关键因素之一。为分析乌东德水电站水垫塘边坡受泄洪雾化雨影响程度,选取水垫塘边坡典型断面,建立二维非饱和、非稳定渗流计算模型,采用有限元法模拟泄洪雾化雨入渗过程,分析雾化雨入渗条件下坡体饱和区范围及压力水头的变化规律,同时对比研究坡面防护措施的效果。结果表明,对于坡体内部渗透性上强、下弱的部位,随着入渗补给量的持续增加,在阻水部位压力水头会逐渐升高;当坡面采取弱透水材料防护后,可显著减少坡面雾雨入渗量,从而显著降低雾化雨入渗对坡体渗流场的影响。 Spillway infiltration in high dam is one of the key factors that affect the stability of the sluice pond slope. In order to analyze the influence of spillway fog on the water cushion pond slope of Wudong Hydropower Station, a typical two-dimensional unsaturated and unsteady seepage model was established by selecting the typical section of the plunge pool slope. The finite element method Seepage process, the variation range of saturated zone and the head of pressure under the condition of atomizing rain infiltration were analyzed, and the effect of slope protection measures was comparatively studied. The results show that for the parts with high permeability and weakness in the slope, the pressure head at the water blocking part will gradually increase with the infiltration recharge increasing. When the slope is protected by the weak permeable material, Reduce the infiltration of slope mist and rain, thus significantly reducing the infiltration of atomized rain on the seepage field of the slope.