摘要
为研究地下采矿作业、冻土融化对高海拔地区露天矿边坡变形的影响,以某铁矿为研究对象,采用边坡合成孔径雷达对该铁矿采场东侧边坡进行全天时、全天候在线监测,取具有代表性的监测数据,分析该铁矿边坡变形的影响因素。研究结果表明:在地下采矿作业期间,与采空区贯通的边坡表面受采矿作业影响的面积及变形量均较大,但监测曲线无明显的持续加速变形特征;与地下采矿作业相比,冻土融化对边坡表面变形的影响较小,其变形在受影响阶段内呈现出较为平稳的变化趋势。研究结果可为相关企业提高露天矿在线边坡监测预警预报准确性及加强边坡稳定性控制等研究提供一定参考。
In order to study the influence of underground mining operation and permafrost thawing on the slope deformation of open-pit mine in high altitude areas,an iron mine was taken as the research object,then the slope synthetic aperture radar(S-SAR)was used to conduct all-day and all-weather online monitoring of the east side slope of the mining site,and the representative monitoring data were intercepted to analyze the influencing factors of slope deformation in the iron mine.The results show that during the underground mining operation,both the affected area and deformation of the slope surface connected with the goaf are large,but the monitoring curve has no obvious accelerated deformation characteristics.Compared with under-ground mining operation,the impact of permafrost thawing on slope surface deformation is relatively small,and the deformation is relatively stable during the affected stage.The research results have certain reference value for improving the accuracy of online slope monitoring and early warning in open-pit mines and strengthening the control of slope stability by relevant mining enterprises.
作者
孙贝贝
周葵
林永春
SUN Beibei;ZHOU Kui;LIN Yongchun(Cathay Safety Technology Co.,Ltd.,Beijing 100012,China;Hejing County Beizhan Mining Co.,Ltd.,Bayingolin Xinjiang 841300,China;Longnan Zijin Mining Co.,Ltd.,Longnan Gansu 742200,China)
出处
《中国安全生产科学技术》
CAS
CSCD
北大核心
2023年第S01期79-85,共7页
Journal of Safety Science and Technology
基金
中国安全生产科学研究院基本科研业务费专项资金项目(2023JBKY04)
关键词
露天矿山
边坡雷达
变形监测
影响因素
open-pit mine
slope radar
deformation monitoring
influencing factor
