某矿山高陡边坡开挖卸荷过程中的位移及应力演变特性  

Displacement and Stress Evolution Characteristics During Excavation and Unloading of High and Steep Slope in a Mine

作　　者：侯宜峰 秦柯 黄洁[2,4] 唐恺 HOU Yifeng;QIN Ke;HUANG Jie;TANG Kai(Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.;Key Laboratory of Disaster Prevention and Control for Non-coal Open-pit Mines,National Mine Safety Administration;State Key Laboratory of Safety and Health for Metal Mines;Huawei National Engineering Research Center of High Efficiency Recycling of Metallic Mineral Resources Co.,Ltd.)

机构地区：[1]中钢集团马鞍山矿山研究总院股份有限公司,安徽省马鞍山市243000 [2]非煤露天矿山灾害防控国家矿山安全监察局重点实验室 [3]金属矿山安全与健康国家重点实验室 [4]华唯金属矿产资源高效循环利用国家工程研究中心有限公司

出　　处：《现代矿业》2025年第1期155-159,共5页Modern Mining

摘　　要：以某建筑用花岗岩矿为实例,通过有限元数值模拟方法,揭示高陡边坡在形成过程中的位移和应力演变规律。研究结果显示,随着开采深度的递增,边坡的水平及垂直位移与开采深度之间存在显著的三次函数正相关关系,且位移多集中于坡面、坡脚以及岩层交界处;剪应力随着高程的降低而增大,主要集中在坡面、坡脚以及岩层交界处,与水平和垂直方向位移分布相吻合。研究成果不仅为矿山边坡监测设施的合理布局提供了重要参考,也为矿山在开采至特定平台时,提前做好安全工作提供了科学依据。Taking a granite mine for construction as an example,the displacement and stress evolution of a high and steep slope during its formation are revealed by finite element numerical simulation method.The results show that with the increase of mining depth,there is a significant cubic positive correlation between the horizontal and vertical displacement of slope and mining depth,and the displacement is mainly concentrated in the slope surface,slope foot and the junction of rock strata.The shear stress increases with the decrease of elevation,and is mainly concentrated at the slope foot and the junction of rock strata,which is consistent with the horizontal and vertical displacement distribution.The research results not only provide an important reference for the reasonable layout of mine slope monitoring facilities,but also provide a scientific basis for the safety work in advance when mining to a specific platform.

关 键 词：高陡边坡 开挖卸荷 位移与应力演变 边坡监测 

分 类 号：TD804[矿业工程—矿山开采]