大宝山矿露天边坡参数优化及稳定性分析

Parameter Optimization and Stability Analysis of Open-pit Slope in Dabaoshan Mine

在工程实际中为保证矿山安全,需使露天矿边坡满足安全稳定要求。文章在符合安全规程要求的原则下对大宝山采场露天边坡最终边坡角、阶段高度、平台宽度、阶段坡面角、运输道路宽度和露天底最小宽度等参数进行了调整,并对调整后的边坡和台阶进行稳定性分析。分析结果表明:矿山整体边坡的稳定性系数均高于1.180,台阶边坡的稳定性系数均高于1.576。调整后的露天边坡在不同工况下的安全系数满足规范要求,因此,可以认为调整后的边坡参数可以满足生产要求。

In order to ensure mine safety in engineering practice,it is necessary to make the open-pit slope meet the safety and stability requirements.In this paper,the parameters of the final slope angle,stage height,platform width,stage slope angle,transportation road width and minimum width of open botom of Dabaoshan stope are adjusted under the principle of safety regulations,and the stability of the adjusted slope and step is analyzed.The analysis results show that the stability coefficients of the whole slope are higher than 1.180,and the stability cofficients of the step slope are higher than 1.576.The safety factor of the adjusted open-pit slope under different working conditions can meet the requirements of the specification.There fore,it can be considered that the adjusted slope parameters can meet the product ion requirements.