黑山露天矿内排土场边坡稳定分析及治理措施

    Analysis and Treatment of Slope Stability of Inner Dump in Heishan Open-pit Mine

    • 摘要: 对黑山露天矿内排土场的边坡稳定问题进行分析,在对内排土场边坡稳定性进行理论分析的基础上,采用ANSYS软件对内排土场边坡的稳定性和破坏机理进行研究。研究结果表明:黑山露天矿内排土场边坡的滑坡模式为“坐落滑移式”滑动,NP1-1和NP1-2剖面稳定系数分别为1.003和1.015,均处于极限平衡状态,远小于安全储备系数1.2的要求。为了保证内排土场边坡稳定,防止滑坡事故发生,需要对内排土场边坡进行削坡处理,并加强巡查,保证露天矿安全生产。

       

      Abstract: The slope stability of Heishan Open-pit Mine is analyzed, and the stability and failure mechanism of internal slope are studied by ANSYS software on the basis of theoretical analysis of internal slope stability. The results show that the landslide model of the dump slope in Heishan Open-pit Mine is “sitting slip” sliding, and the stability coefficients of section NP1-1 and NP1-2 are 1.003 and 1.015, respectively, which are in the limit equilibrium state, far less than the requirement of safety reserve coefficient 1.2. In order to ensure the stability of the slope of the inner dump and prevent the occurrence of landslide accidents, it is necessary to carry out slope cutting treatment of the internal dump, and strengthen the inspection to ensure the safety of production in the open pit mine.

       

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