贵州某铝土矿山边坡崩塌破坏特征及机理分析  

Analysis of slope collapse failure characteristics and mechanism of a phosphate mine in Guizhou

作　　者：贾本超 潘忠飞 张涯胸 罗克军 林娟 JIA Ben-chao;PAN Zhong-fei;ZHANG Ya-xiong;LUO Ke-jun;LIN Juan(Guizhou Chengqian Mineral Co.,Ltd.,Zunyi 563100,China;College of Resources and Environmental Engineering,Guizhou University.,Guiyang 550025,China;Guizhou Xifeng Phosphate Mine Co.,Ltd.,Guiyang 550000,China)

机构地区：[1]贵州成黔矿产有限公司,贵州遵义563100 [2]贵州大学资源与环境工程学院,贵州贵阳550025 [3]贵州息烽磷矿有限责任公司,贵州贵阳550000

出　　处：《世界有色金属》2024年第24期232-234,共3页World Nonferrous Metals

摘　　要：为了能够对矿山边坡的稳定性进行精细化分析,厘定其变形特征和破坏机理,本文对贵州某地下铝土矿山砂岩型边坡崩塌事故的破坏特征及机理进行宏观和微观上的分析,认为发生边坡崩塌事故主要是由于在爆破地震波和雨水的耦合作用下,边坡砂岩发生结构性破坏所致。崩塌面上的立方体模型,其受力主要是重力G和粘聚力C及摩擦力f构成的约束力F,破坏作用的累积,导致崩塌面上粘聚力和摩擦力的结合力与重力之间的失衡是导致边坡崩塌的根本原因。In order to be able to finely analyze the stability of the slope of the mine and determine its deformation characteristics and damage mechanism,this paper analyzes the damage characteristics and mechanism of the sandstone-type slope collapse accident inan underground bauxite mine in Guizhou.lt is believed that theslope collapse accident is mainly due to the explosion of seismicwaves and rainwater.Under coupling,structural damage occurred in the sandstone onthe slope.The cubic model on the collapse surface is mainly subected to the binding force F composed of gravity G and cohesion C and friction f The accumulation of destruction causes the imbalance between the combination of adhesion and friction and gravity on the collapse surface,which is the root that causes the slope to collapse The root cause.

关 键 词：矿山边坡 爆破地震波 破坏累积 岩体崩塌 

分 类 号：U416.14[交通运输工程—道路与铁道工程]