摘要
以某一具体露天矿边坡工程实例为研究对象,在对矿山边坡现场调查及其工程地质认识基础上,开展了矿山边坡工程地质分区和优势节理结构面的确定,并采用定性与定量、局部与整体相结合的极射赤平投影和极限平衡分析方法对矿山开挖边坡安全稳定进行了分析评价。研究结果表明:露天矿局部台阶边坡受结构面控制发生滑动破坏的可能性小,仅是受开挖扰动等影响局部台阶可能出现垮塌现象,即台阶边坡内表现弱协同性,但边坡系统整体处于协同稳定范围内,符合矿山边坡适度变形、允许部分破坏的思想理念,对下一步矿山现场生产管理和施工等工作部署具有重要的指导意义。
A specific example of the open-pit slope engineering was taken as the study object.On the basis of field investigation in the open-pit slope and the theoretical analysis of the engineering geology,the engineering-geological zoning of open-pit slope and the determination of the preferred joint plane were carried out.Stereographic projection and limit equilibrium analysis method combining qualitative and quantitative analysis were used to analyze and estimate the safety and stability of the excavation mine slope.The results show that the sliding failure of bench slope in open-pit mine is less likely to occur under the control of structural plane,and the part of bench may collapse only under the influence of excavation disturbance.The bench slope shows weak synergism,but the mine slope system is in the range of synergistic stability,which is accepted according to the principles of moderate deformation and damage tolerance.It has important significance in arranging the construction and production management in mine site in the next stage.
作者
施雄斌
冯娟
周晓超
SHI Xiongbin;FENG Juan;ZHOU Xiaochao(Kunming Engineering&Research Institute of Nonferrous Metallurgy Co.,Ltd.,Kunming 650051,China)
出处
《昆明冶金高等专科学校学报》
CAS
2023年第2期55-61,共7页
Journal of Kunming Metallurgy College
关键词
极射赤平投影
萨尔玛法
露天矿边坡
协同稳定
stereographic projection method
Sarma method
open-pit slope
synergistic stability
作者简介
施雄斌(1981-),男,云南洱源人,高级工程师,工学硕士,主要从事采矿设计工作与研究。
