中文摘要：

根据泄洪雾化范围的估算式，参照二滩电站等重大水电工程设计所采用的雾化范围，确定所研究水电站的泄洪雾化范围；结合电站的主要结构面性质，确定其左岸下游潜在的滑坡体。基于考虑泄洪雾化作用的饱和非饱和非稳定渗流理论，研究了左岸下游边坡潜在滑坡体周界上的扬压力随泄洪雾化过程的演变规律，在设计防护方案的基础上提出3种防护比较方案，通过对不同方案的防护效果比较，最终确定了最优的泄洪雾化防护方案。

英文摘要：

According to the estimation formula of flood discharge atomization, and with reference to the atomization range of major hydropower engineering projects such as the Ertan Hydropower Station, we determined the range of the flood discharge atomization of the chosen hydropower station. Based on the main properties of the structural plane of the hydropower station, we determined the potential landslide downstream the left bank of the station. Based on saturated and unsaturated unstable seepage theory, and with consideration of the function of flood discharge atomization, we analyzed the evolution of the uplift pressure on the structural surfaces of the potential landslide, and we propose three protection schemes based on the design scheme. Through comparison of the effects of the three schemes, we have selected the optimum scheme.