Abstract: For water conservancy and hydropower projects, the stability of slope is a common issue, worthy of further study. Because the calculation parameters cannot be accurately chosen, the complex natural and man factors that affect slope stability cannot be fully considered, the widely used mechanical calculation methods, such as limit equilibrium method, have certain limitations. In this paper, various uncertain factors affecting the slope stability are analyzed. Based on the monitoring data, fuzzy comprehensive evaluation method is used to evaluate the treatment effect of slope behind first powerhouse of Huaguangtan hydropower station. The results show that the slope stability has been improved obviously after the treatment, and the expected effect has been achieved.

Key words: monitoring data, fuzzy mathematics, treatment effect, comprehensive evaluation

摘要： 在水利水电领域，边坡稳定性问题是常见的、值得深入研究的问题。诸如极限平衡法等应用广泛的力学计算方法，由于计算参数无法准确选取、不能全面考虑影响边坡稳定性的复杂自然和人为因素，具有一定的局限性。基于监测数据，综合影响边坡稳定性的各种模糊不确定因素，采用模糊综合评判方法，对华光潭水电站一级厂房后边坡治理前后的稳定性做出评价，以此评估边坡的治理效果。结果表明，该边坡稳定性在治理后得到明显提升，治理取得预期效果。

关键词: 监测数据, 模糊数学, 治理效果, 综合评价