Abstract: Combined with reservoir operation and geology analysis, this paper analysed the structure stability by finite element method.The analysis result showed that the safety factor against sliding of upstream dam slope could meet the requirement of criterion while the factor of downstream dam slope couldn＇t which means that rehabilitation was necessary for this reservoir.

摘要： 在对水库运行状况和地质条件进行分析的基础上，采用有限元法对水库进行了结构稳定分析，分析结果显示，大坝上游坝坡滑动安全系数满足要求，下游坝坡滑动安全系数不满足要求，必须对水库进行除险加固。