基于Geo-Studio的黄山市某尾矿坝稳定性分析及加固设计

Seepage stability analysis and reinforcement designof taillings dam in Huangshan city based on Geo-studio

降雨是影响尾矿坝稳定性的重要因素,但大多数研究针对于降雨时的坝体稳定性变化情况,对停雨后的变化研究不足,本文基于Geo-Studio中的seep/w与slope/w模块,以黄山市某尾矿坝为例分析12 d内尾矿坝在降雨与停雨情况安全系数的变化情况,提示可能正常运行工况下安全系数满足规范要求的尾矿坝在洪水运行工况下有可能发生失稳破坏风险,且停雨后尾矿坝仍有可能会发生失稳破坏。通过采用坡脚压坡堆石进行治理是一种简单快捷的方法,治理后在洪水运行工况能满足要求。

Based on the seep/w and slope/w of Geo-Studio,this paper takes a tailings dam in Huangshan City as an example to analyze the change of the safety factor of tailings dam in rainfall and rain stop within 12 days,suggesting that tailings dams with safety factors that meet the requirements of the code under normal operating conditions may have the risk of instability under flood operating conditions,and tailings dams may still be unstably after rain stops.By using rock to reinforce the slope is a simple and fast method that can meet the requirements in flood operation conditions after treatment.