露天矿反倾边坡稳定性分析及加陡可行性研究  

Stability Analysis and Steepening Feasibility Study of Anti-dip Slope in Open-pit Mine

作　　者：吕志威 周蒙 刁鹏飞 LYU Zhiwei;ZHOU Meng;DIAO Pengfei(Hebei Iron and Steel Group Mining Co.,Ltd.;Luanxian Sijiaying Iron Mine Co.,Ltd.,Hebei Iron and Steel Group)

机构地区：[1]河北钢铁集团矿业有限公司 [2]河北钢铁集团滦县司家营铁矿有限公司

出　　处：《现代矿业》2023年第10期100-103,108,共5页Modern Mining

摘　　要：以研山铁矿西帮反倾边坡为工程背景,探究其最终境界加陡的可行性。通过现场地质调查,掌握了影响边坡稳定性的关键因素,针对西帮反倾边坡破坏模式,开展了原设计境界边坡稳定性研究工作;结合国内外矿山工程类比,对研山西帮反倾边坡加陡范围进行了初步分析,对不同加陡角度安全系数进行验算。结果表明,原设计境界反倾边坡满足安全要求,具有加陡1°~2°的可行性;从安全方面考虑,加陡1°更加稳妥。Taking the anti-dip slope of the west side of Yanshan Iron Mine as the engineering background,the feasibility of the final boundary steepening is explored.Through the field geological survey,the key factors affecting the stability of the slope are mastered.According to the failure mode of the anti-dip slope on the west side,the stability of the original design boundary slope is studied.Combined with the analogy of mine engineering at home and abroad,the steepening range of anti-dip slope in Shanxi slope is preliminarily analyzed,and the safety factors of different steepening angles are checked.The results show that the original design boundary anti-dip slope meets the safety requirements and has the feasibility of steepening 1°~2°.From the safety point of view,steeper 1° is more secure.

关 键 词：反倾边坡 破坏模式 稳定性分析 工程类比 边坡角 

分 类 号：TD804[矿业工程—矿山开采]