露天矿边坡稳定性的层次分析-模糊综合评价耦合分析  

Open-pit mine slopes stability analysis based on analytic hierarchy process-fuzzy comprehensive evaluation model

作　　者：李志国[1] 徐涛[1] 刘永杰 赵立春 徐勇超 杨天鸿[1] 郑小斌 LI Zhiguo;XU Tao;LIU Yongjie;ZHAO Lichun;XU Yongchao;YANG Tianhong;ZHENG Xiaobin(Center for Rock Instability and Seismicity Research,Northeastern University,Shenyang,Liaoning 110819,China;Tongliao Branch,State Power Investment Corporation Inner Mongolia Energy Co.Ltd.,Tongliao,Inner Mongolia 029200,China;Zhalute Banner Zhahanao’er Coal Industry Co.Ltd.,Tongliao,Inner Mongolia 029100,China)

机构地区：[1]东北大学岩石破裂与失稳研究所,辽宁沈阳110819 [2]国家电投内蒙古公司,内蒙古通辽029200 [3]扎鲁特旗扎哈淖尔煤业有限公司,内蒙古通辽029100

出　　处：《中国地质灾害与防治学报》2024年第1期116-123,共8页The Chinese Journal of Geological Hazard and Control

基　　金：国家自然科学基金资助项目(42172312,51974062)。

摘　　要：露天煤矿台阶所构成的边坡对矿山资源生产及运输发挥着重要的作用,也承载着煤炭外运的任务,其稳定性对矿山连续生产具有重要意义。文章在边坡地质调查和监测信息分析的基础上,充分考虑边坡几何形态、地质信息、气象水文信息、现场监测信息等指标,以层次分析法确定边坡稳定性分析的指标权重,基于隶属度最大原则确定边坡稳定性状态,建立了多源信息融合的边坡层次分析-模糊综合评价模型。将该模型应用于扎哈淖尔露天煤矿北帮边坡稳定性分析中,最后基于数值模拟对模型进行了验证。研究表明,北帮边坡基本稳定,基于数值模拟得出扎哈淖尔露天煤矿北帮边坡滑移面安全系数为1.121,模型结果与数值模拟结果所得到的边坡稳定性状态吻合度较好,验证了模型的有效性。该模型可以充分考虑多重信息对边坡稳定性分析的贡献,从而更全面准确分析边坡稳定性。The bench slope within an open-pit coal mine plays an important supporting role for coal resource production and transportation.The stability evaluation of the slope is of great significance in guiding continuous mining operations within the mine.This study leverages monitoring data and geological surveys of the slope,employing the analytic hierarchy process(AHP)to assign weights to slope stability analysis factors.Additionally,it employs the principle of maximum membership degree,taking into account various parameters such as slope geometry,geological data,meteorological and hydrological information,and field monitoring data.This paper establishes an analytic hierarchy process-fuzzy comprehensive evaluation model for slope stability assessment.Subsequently,the model is applied to analyze the stability of the north slope at the Zhahanao’er open-pit coal mine.The research indicates that,accordingly to the established slope analytic hierarchy process-fuzzy comprehensive evaluation model,the northern slope is deemed to be fundamentally stable.The numerical simulated FOS(factor of safety)of 1.121 aligns remarkably well with model results.It is comprehensive and accurate since the model can fully consider the contribution of multiple information to the stability of slope.

关 键 词：露天矿边坡 监测信息 模糊综合评价 边坡稳定性 数值模拟 

分 类 号：P642.21[天文地球—工程地质学]