复杂地基条件下尾矿坝的稳定性分析

Stability Analysis of Tailings Dam in the Condition of Complex Foundation

通过对某三等尾矿坝的工程地质概况进行分析,确定采用压重法、排水固结与预压加载相结合、并控制加载速率的方法,解决复杂地基条件下尾矿坝稳定性不足的问题,然后进行稳定性分析计算。结果表明,某尾矿坝在空库、初期及终期不同运行工况下的安全系数均能满足规范要求。

Based on the analysis of the engineering geology situation of a tailings dam with third class, it was determined that the method of combining counter-weight method, drainage consolidation and preloading, and controlling the loading rate was adopted to solve the problem of insufficient stability of tailings dam in the condition of complex foundation, then analysis and calculation of the stability were carried out. The results showed that the safety factor of a tailings dam in different operating conditions of empty reservoir, initial stage and final stage could meet the requirements of normal.