灰色关联度支持下的露天矿边坡稳定性影响因素敏感性分析  

Sensitivity analysis of influencing factors of open-pit mine slope stability based on grey correlation

作　　者：陈兰兰 肖海平[2] 刘鑫钰 刘伟 CHEN Lanlan;XIAO Haiping;LIU Xinyu;LIU Wei(College of Resources and Architectural Engineering,Gannan University of Science and Technology,Ganzhou 341000,China;School of Architectural and Surveying Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;Geological and Geographic Information Institute of Hunan Province(Geological Big Data Center of Hunan Province),Changsha 410000,China)

机构地区：[1]赣南科技学院资源与建筑工程学院,江西赣州341000 [2]江西理工大学土木与测绘工程学院,江西赣州341000 [3]湖南省地质地理信息所(湖南省地质大数据中心),湖南长沙410000

出　　处：《测绘通报》2024年第1期145-149,共5页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(42361012);江西省自然科学基金(20212BAB204030);江西省教育厅科学技术项目(GJJ2203602)。

摘　　要：露天矿边坡在各种内外部因素相互作用下,其稳定性将呈现出不同的状态,有效分析不同影响因素对边坡的敏感性程度,对指导矿山安全生产和防治具有重要的应用价值。本文在分析越堡露天矿边坡岩层性质、地质构造、水文条件、地形地貌及外界因素的基础上,挖掘出该露天矿边坡稳定性的关键影响因子,主要有重度V、内摩擦角ψ、黏聚力c、坡顶荷载q、坡比m 5个指标,并依据其正交试验结果,构建了基于灰色关联分析的影响因素敏感性模型。研究结果表明,5个主要影响因子对边坡稳定性的敏感性程度从大到小为:黏聚力>内摩擦角>坡比>重度>坡顶荷载。本文结果可为露天矿边坡科学防治提供科学依据。Under the interaction of various internal and external factors,the stability of open-pit mine slope will show different states.Effective analysis of the sensitivity and size of different influencing factors to the slope has important application value for guiding the safe production and prevention of the mine.Based on the analysis of the rock properties,geological structure,hydrological conditions,topography and external factors of the slope of Yuebao open-pit mine,this paper puts forward the key influencing factors of the slope stability of the open pit mine,mainly including the gravity V and internal friction angleψ.According to the results of the orthogonal test,the sensitivity model of the influencing factors based on the grey correlation analysis is established for five indicators,such as cohesion c,slope top load q,and slope ratio m.The research results show that the sensitivity of the five main influencing factors to the slope stability is as follows:c>ψ>m>V>q.The research results can provide scientific basis for scientific prevention and control of open-pit mine slope.

关 键 词：露天矿边坡 影响因素 灰色关联分析 敏感性分析 

分 类 号：P258[天文地球—测绘科学与技术]