摘要
青海某露天矿位于青海省西部东昆仑山脉西段,柴达木盆地南缘。矿体严格受镁铁-超镁铁杂岩体的控制,矿体产状与岩体基本一致,呈北东东向展布,走向长1 680 m,平均厚度85 m,平均倾角20°。设计采用露天开采,西南部露天开采非工作帮最终边坡角达到48°,通过三维建模和数值模拟对该露天矿边坡稳定性进行分析研究。结果表明,该矿山露天开采终了边坡中下部有发生圆弧型破坏的可能,在生产过程中存在安全隐患,需要采取加固措施。本文的研究为该矿山后期露天采场边坡加固提供理论依据。
The mine is located in west of Kunlun Mountains and south of Qaidam Basin of Qinghai Province. The ore bodies, controlled by the mafic-ultramafic complex, occur in consistent with rock in strike. The orebody o- rientation is northeast-east with the strike length 1 680 m, average thickness 85 m, and average angle 20°. The mine is designed as strip mining with the final slope angle 48° in southwest. Based on three-dimensional mining project software and numerical simulation analysis software, the slope stability is studied. The results indicate that in the lower middle part of the strip mining final slope may occur rock mass failure and exist the safety loophole. This paper will provide the theoretical basis for reinforcement of the strip mining slope.
作者
李凤
张鹏强
李程
LI Feng;ZHANG Peng-qiang;LI Cheng(Jinchuan Group Corp.Ltd.,Jinchang 737100,Gansu,China;State Key Laboratory of Nickel and Cobalt Resources Comprehensive Utilization,Jinchang 737100,Gansu,China;HBIS Group Technology Research Institute,Shijiazhuang 050000,China)
出处
《矿冶》
CAS
2018年第5期25-29,共5页
Mining And Metallurgy
关键词
露天矿山
边坡稳定
三维矿山模型
数值模拟
open pit mine
slope stability
three-dimensional mining model
numerical simulation
