摘要
为了解决露天矿内排土场发生的变形问题,以大唐胜利东二号露天煤矿内排土场为研究背景,基于刚体极限平衡法,系统分析了内排土场边坡的稳定性,并针对存在的风险给出压脚的治理措施,验算了不同压脚距离下的边坡稳定性。研究结果表明:合理增加压脚距离能有效增强边坡的抗滑移能力,当内排土场+888~+918 m水平平盘局部现状边坡压脚距离增加到40 m时,边坡稳定性系数可达到1.293,满足安全储备系数,边坡处于稳定状态。
In order to solve the deformation problem of the internal dump in an open-pit mine,this article takes the internal dump in Dadang Shengli East No.2 Open-pit Coal Mine as the research background,based on the theory of rigid body limit equilibrium,analyzes the slope stability of the internal dump,and takes the corresponding measures aiming at the existing risks,and verifies the slope stability under different foot pressing distances.The research results show that when the local status slope of+888-+918 m platform in the internal dump reaches a toe depth of 40 m,the stability coefficient of the slope is 1.293,which meets the safety reserve coefficient and the slope is in a stable state.
作者
王普毅
WANG Puyi(Inner Mongolia Datang International Xilinhot Mining Co.,Ltd.,Xilinhot 026000,China)
出处
《露天采矿技术》
2025年第5期92-95,共4页
Opencast Mining Technology
基金
国家自然科学基金资助项目(52374124)
鄂尔多斯市科技重大“揭榜挂帅”资助项目(JBGS-2023-003)。
关键词
内排土场
边坡稳定性
刚体极限平衡
组合滑动
压脚
internal dump
slope stability
rigid body limit equilibrium
combined sliding
toe pressure
