陷落柱对露天矿非工作帮边坡稳定影响及控制对策  

Influence of collapse column on slope stability of non-working slope and control countermeasures in open-pit mines

作　　者：焦步青 丁鑫品[2] JIAO Buqing;DING Xinpin(China Coal Pingshuo Group Co.,Ltd.,Shuozhou 036006,China;China Coal Research Institute,Beijing 100013,China)

机构地区：[1]中煤平朔集团有限公司,山西朔州036006 [2]煤炭科学研究总院,北京100013

出　　处：《露天采矿技术》2020年第2期63-66,共4页Opencast Mining Technology

基　　金：国家自然科学基金资助项目(51774184);中国煤炭科工集团有限公司科技创新创业资金青年资助项目(2018-TD-QN005)。

摘　　要：为了掌握陷落柱不良地质构造对露天矿非工作帮边坡稳定的影响规律,解决受其影响而引起的边坡失稳的问题,以平朔安家岭露天矿北帮为研究对象,采用Geo-Studio软件对陷落柱影响下北帮边坡的稳定性进行了分析计算,以计算结果为依据,结合现场实际情况,针对存在滑坡隐患的不稳定区域提出了内排压脚的防治措施。研究结果表明:内排压脚防治措施可以有效提高边坡安全系数,降低陷落柱对边坡稳定性的影响,对于保障安家岭露天矿非工作帮边坡稳定与安全、实现高效生产具有重要实践意义。In order to grasp the influence law of collapse column on the slope stability of open-pit mine,and solve the problem of slope instability,this article takes the north slope of Pingshuo Anjialing Open-pit Mine as the research object,and analyzes and calculates the north slope stability under the effect of collapse column using Geo-studio software.Based on the calculation results,combining with the actual situation,the article presents the control measure of internal dumping presser footfor the unstable area with landslide hidden danger.The results show that the way of internal dumping presser foot can effectively improve the safety factor of slope,and reduce the impact of collapse column on slope stability,which is of great practical significance to ensure the stability and safety of the non-working slope and realize the efficient production in Anjialing Open-pit Mine.

关 键 词：露天矿 非工作帮 陷落柱 边坡稳定 控制对策 

分 类 号：TD824.7[矿业工程—煤矿开采]