尾矿坝稳定性分析

Analysis of tailing dam's stability

为了尾矿库的安全生产,需对尾矿坝进行中期的系统稳定性评价,采用数值方法针对具体工程实例进行渗流稳定性、静力稳定性和动力稳定性计算,结果表明:浸润线没有从坝坡出溢,水力坡降不大,渗流稳定。安全系数满足规范要求,坝体是静力稳定的。从坝体动力反应及液化结果得出该坝是动力稳定的。同时提供了一条稳定性评价的完整路线,用数值模拟方式对尾矿坝的计算有一定参考价值和指导意义。

For the production safety of the tailings dam, a mid-term tailings dam system stability assessment is needed. With numerical methods, aiming at the specific examples of projects the seepage stability, the statics stability and the dynamics stability are calculated, Results show there is no infiltration of the overflow from the slope, little hydraulic gradient and seepage stability. Safety factors meet regulatory requirements and the dam is in static stability. Dynamic responses from the dam and liquefaction results of the dam show that the dam is stable. The study provides a comprehensive assessment of the stability line. The calculation with the numerical simulation of the tailings has a certain reference value and significance.