不同荷载作用下露天矿山边坡稳定性研究
Research on slope stability of open pit mines under different load actions
李鹏1
作者信息
- 1. 紫金矿业集团股份有限公司,福建 龙岩 364200
- 折叠
摘要
为研究外荷载作用下边坡变形规律,以福建省西南部地区某金属露天矿山为研究对象,通过分析降雨和爆破2种工况下边坡变形情况,研究不同荷载作用下露天矿山边坡的稳定性.研究结果表明:降雨对边坡具有一定的冲刷作用,使岩体强度弱化,并且随着降雨时间的持续,边坡变形不断增大;爆破对边坡具有扰动作用,并且随着时间的变化出现增长现象,越接近爆破时段影响越明显.因此,分析外荷载作用下边坡变形规律进而研究边坡稳定性可对露天矿山边坡安全提供借鉴意义.
Abstract
To study the deformation law of slopes under external loads,a metal open-pit mine in the southeast region was taken as the research object.By analyzing the deformation of slopes under rainfall and blasting condi-tions,the stability of open-pit mine slopes under different loads was studied.The research results indicate that rainfall has a certain scouring effect on the slope,weakening the strength of the rock mass,and with the duration of rainfall,the deformation of the slope continues to increase.Blasting has a disturbance effect on slopes,and there is a growth phenomenon over time,with the impact becoming more pronounced as the blasting period approaches.Therefore,analyzing the deformation law of slopes under external loads and studying slope stability can have refer-ence significance for the safety of open-pit mine slopes.
关键词
外荷载/露天矿山/降雨冲刷/爆破扰动/边坡稳定性Key words
external load/open pit mines/rainfall erosion/blasting disturbance/slope stability引用本文复制引用
出版年
2024
NETL
NSTL
万方数据