基于有限元极限平衡法的尾矿坝稳定性分析

Tailings Dam Stability Analysis by the Limit Equilibrium Method Based on the Finite Element Method

考虑弹塑性有限元分析可较准确地反映岩土体应力分布的理论严密性与极限平衡法计算安全系数概念明确、工程实用,特将边坡稳定性分析的有限元法和极限平衡法相结合,以某尾矿坝工程实际为例,运用有限元极限平衡法对尾矿坝坝体在正常、洪水以及特殊工况运行下的稳定性进行了验算分析得到了较为满意的结果,为尾矿坝的安全设计施工提供了可靠依据和技术支撑。

Considering the theoretical rigor of elastic -plastic finite element analysis in reflecting the stress distri- bution of rock and earth mass and the clear concept and practicability of limit equilibrium method in calculating safety factor, the finite element method was combined with the limit equilibrium method. Taking the tailings dam project as an example, finite -element limit equilibrium method was adopted to check and analyze the stability of tailings dam in normal condition, flooding and other special working conditions. The results are satisfying and can serve as reliable foundation and technical support for the design and construction of tailings dam