安家岭露天矿东北帮地质构造复杂区域边坡治理研究

Research on slope treatment in complex geological structure area of northeast slope in Anjialing Open-pit Mine

为提高安家岭露天矿东北帮边坡稳定性,解决北帮、东帮区域边坡受连续降雨影响出现的不同程度的滑坡变形问题,根据东、北帮区域存在的不良地质因素,结合以往地质资料、矿区现状平面图、工程地质调查成果、补充工程地质勘查成果及矿山到界设计等资料,对该区域边坡稳定性进行了评价分析,探讨了该区域边坡治理方案并进行了优选。结果表明:通过对安家岭矿东帮进行削坡减载治理,边坡稳定性系数可达1.05以上,在边坡稳定时效内,可满足矿山现场生产需要,实现转向内排。

In order to improve the slope stability of the northeast slope of Anjialing Open-pit Mine and solve the problems of different degrees of landslide deformation caused by continuous rainfall in the north and east slope areas,according to the bad geological factors existing in the eastern and northern areas,combined with the previous geological data,the current situation map of the mining area,the results of engineering geological survey,the results of supplementary engineering geological survey and the design of the mine to the boundary,the article evaluates and analyzes slope stability of the area,and discusses and optimizes the slope treatment scheme of the area.The results show that the stability coefficient of the slope can reach more than 1.05 through the slope cutting and load reduction treatment of the east slope of Anjialing Mine,which can meet the needs of mine site production and realize the steering and internal discharge within the time limit of slope stability.