井采条件下安家岭排土场边坡稳定性分析

边坡稳定性问题一直是岩土工程界的一个重要研究内容。随着一些露天矿山相继转入深凹开采,边坡体的移动和变形日趋尖锐,迫切要求对矿山边坡有确切的评价。根据平朔安家岭露天矿工程实践,运用拉格朗日差分法分析了地下水及井采扰动情况下的边坡稳定状况。研究了井采扰动条件下的边坡破坏模式,进行了边坡稳定性计算和评价,提出了相应的防治措施。结果表明:水压和井采扰动是影响边坡稳定性的重要因素,局部边坡受井采扰动十分剧烈,存在滑坡可能。

Analysis of dump slope stability in the condition of underground mining in Anjialing open-pit mine

Slope stability has always been an important study in geotechnical engineering,which affected the safety,operation and their building costs seriously.Because some open-pit mines have been transferred to deep mining gradually,the movement and deformation of slope have become acute increasingly and it is necessary to get a precise evaluation of slope stability.In this paper,which chose the Anjialing open-pit mine in Pingshuo as research object,Fast Lagrangian Analysis of Continua for slope stability analysis were utilized to consider the influence of external environment on slope stability,such us groundwater and underground mining.The contents of study was included: studying water pressure and slope damage model under underground mining;finally,carrying out the slope stability calculations and evaluation,and providing with the corresponding prevention and control measures.According to the analysis of the results of study above,we found that the water pressure and underground mining are the important factors on affecting slope stability of the rock slope.Some upper slope were affected sharply,at the same time,the sliding of slope was existed possibly.