四川省某露天矿石灰岩质高陡边坡稳定性分析  

Stability analysis of limestone high-steep slope in an open-pit mine in Sichuan Province

作　　者：王一帆 邹进 吉豫庆 陈恒宇 张开选 张世佳 WANG Yifan;ZOU Jin;JI Yuqing;CHEN Hengyu;ZHANG Kaixuan;ZHANG Shijia(Cathay Safety Technology Co.,Ltd.,Beijing 101318,China;Kunming Kunze Mining Technology Co.,Ltd.,Kunming 650000,Yunnan,China;Zhaotong Dingan Technology Co.,Ltd.,Zhaotong 657000,Yunnan,China)

机构地区：[1]中安国泰(北京)科技发展有限公司,北京101318 [2]昆明坤泽矿业技术有限责任公司,云南昆明650000 [3]昭通市鼎安科技有限公司,云南昭通657000

出　　处：《矿产勘查》2024年第S01期249-255,共7页Mineral Exploration

基　　金：国家矿山安全监察局安全生产科研攻关项目(第一批)“大型矿山超高陡边坡透明化监测预警技术研究”资助。

摘　　要：为研究高陡露天边坡的稳定性,本文以四川省某露天矿石灰岩质边坡为工程背景,选取1个典型剖面分析,运用赤平投影分析法对岩质边坡的稳定性进行分析评价,并采用强度理论的刚体极限平衡法与二维有限元数值模拟、三维数值模拟等进行了相互验证比较分析。研究结果表明:1个典型剖面在3种工况下的整体边坡安全系数均符合规范要求值,边坡整体稳定性较好。所得结论对后期施工设计提供了理论依据及数据支持,同时为类似工程的边坡稳定性分析提供了参考。In order to study the stability of high and steep open-pit slope,taking the limestone slope of an open-pit mine in Sichuan Province as the engineering background,a typical profile analysis was selected,and the stability analysis and evaluation of rock slope were carried out by using the stereographic projection analysis method.The rigid body limit equilibrium method of strength theory,two-dimensional finite element numerical simulation and three-dimensional numerical simulation were used to verify and compare each other.The research results show that:The overall slope safety factor of a typical section under three working conditions meets the requirements of the specification,and the overall stability of the slope is good.The conclusions obtained provide theoretical basis and data support for the later construction design,and provide reference for the slope stability analysis of similar projects.

关 键 词：高陡边坡 赤平投影分析法 刚体极限平衡法 有限元 稳定性分析 

分 类 号：X936[环境科学与工程—安全科学]