尾矿坝抗滑稳定性及影响因素敏感度分析研究

Study on the Slide Stability of Tailings Dam and Sensitivity Analysis of Influencing Factors

根据尾矿坝抗滑稳定性与坝体材料特性之间的变化关系,采用瑞典圆弧法对某尾矿坝进行抗滑稳定性计算,并对影响坝体稳定性的材料特性进行了敏感度分析。分析结果表明,坝体抗滑稳定性对坝体材料的摩擦角、内聚力和库内浸润线最为敏感,且敏感程度大小不一,为尾矿坝体设计提供了依据。

According to changes between the stability of tailings dam and the dam material properties in the relationship, the stability of railings dam is calculated using Fellenius method of slices, and sensitivity analysis of the influencing factors due to the stability of railings dam are carried on. The analysis results show that the inner friction angle and inner polymerization force and seepage line of tailings dam is the most sensitive to the slide stability, and the degree of sensitivity of different sizes,which provides a basis for the railings dam design.