露天矿山淤泥质渗水性边坡滑塌治理方案研究  

Research on Treatment Scheme of Slime Seepage Slope Collapse in Open-pit Mine

作　　者：杨建新 YANG Jian-xin(Beijing Geotechnical Engineering Investigation Institute Co Ltd,Beijing 100020,China)

机构地区：[1]北京岩土工程勘察院有限公司,北京100020

出　　处：《世界有色金属》2023年第12期197-199,共3页World Nonferrous Metals

摘　　要：露天矿山边坡失稳滑塌是地质灾害中较为常见的现象,尤其是邻近水系的采坑边坡在侧向水压力与地下水双重作用下,因对边坡渗水的防护与处理不当引发滑塌,影响矿山生产及周边人民的生活财产安全。本文以某露天矿山淤泥质渗水性边坡为例,在分析边坡地形、地质特征、水文地质条件的基础上,查明边坡渗水原因及渗水分布情况,分析边坡的稳定性和破坏机理,预测边坡的发展变化趋势,提出坡脚换填加固、暗埋排水盲沟、地表明排水沟及局部布置降水井相结合的治理方案,为类似露天矿山渗水性边坡的治理提供了治理思路。Slope instability and collapse in open-pit mine is a common phenomenon in geological disasters.Especially,under the double action of lateral water pressure and groundwater,the slope of mining pit adjacent to the water system will collapse due to the improper protection and treatment of slope seepage,which will affect the mine production and the life and property safety of the surrounding people.In this paper,the seepage water slope of an open-pit mine is taken as an example.Based on the analysis of the slope topography,geological characteristics and hydrogeological conditions,the cause and distribution of seepage water of the slope are identified,the stability of the slope under different working conditions is determined,and the development trend of the slope is predicted.This paper puts forward a treatment scheme that combines the replacement filling and reinforcement of slope toe,the blind drainage ditch,the local layout of dewatering well and the ground drainage ditch,which provides a treatment idea for the treatment of seepage water slope in similar open-pit mine.

关 键 词：渗水性边坡 滑塌 稳定性分析 换填加固 排水盲沟 

分 类 号：TD854.6[矿业工程—金属矿开采]