风水沟尾矿坝加高稳定性及液化分析

摘要

The purpose of this paper is to research the dam's stablity assessment of the tailings dam's heightening design. Combining the borehole data and heightening design scheme,the research establishes the geological model of the tailings dam and also calculates the tailings dam seepage stability, the static stability and the dynamic stability under the flood and earthquake work condition. The results show that there is no infiltration of the overflow from the slope and the seepage is stable; The Safety factor meets the regulatory requirements and the dam is in static stability; Dynamic responses and liquefaction results of the dam show that the dam is stable. The study provides a comprehensive assessment of the stability line. This paper has certain significance in seepage,static and the dynamic stability evaluation using the principle of effective stress.%目的 评价尾矿库加高扩容后坝的稳定性.方法 依钻孔资料,结合加高设计方案,建立尾矿坝地质模型.对洪水及地震作用双重工况下,应用有效应力原理进行了尾矿坝渗流稳定性、静力稳定性和动力稳定性计算.结果 结果表明:浸润线没有从坝坡出溢,渗流稳定.从坝体动力反应及液化结果得出该坝动力稳定,安全系数满足规范要求.结论 有效应力原理对尾矿坝在渗流、静力及动力稳定性评价方面有一定的借鉴意义,为类似的尾矿坝稳定性评价提供了一套完整的方法.