充填法采矿影响下地表沉降及竖井位移安全评价分析  

Safety evaluation and analysis of surface subsidence and shaft displacement under the influence of filling mining

作　　者：吴永刚[1] WU Yonggang(Beijing GXAK Co.,Ltd.,Beijing 100160,China)

机构地区：[1]北京国信安科技术有限公司,北京100160

出　　处：《有色金属（矿山部分）》2020年第5期62-66,78,共6页NONFERROUS METALS(Mining Section）

摘　　要：在地下矿山建设项目可行性研究阶段,确定岩石移动角目前常用的方法是工程类比法。而一些改扩建项目,受条件限制,地表会有受保护的对象落入岩石移动范围内。提供了一种采用数值模拟进行安全评价的方法评价岩石移动角选取的合理性,并在案例中进行了应用,对矿岩开采移动界限进行了定性定量评价且提出了相应的安全对策措施建议。In the feasibility study stage of underground mine construction project,the engineering analogy method is commonly used to determine the rock movement angle.However,some reconstruction and expansion projects were restricted by the conditions:some protected objects on the surface may most likely fall into the range of rock movement determined according to the engineering analogy method.In this paper,a method of safety evaluation by numerical simulation was provided to evaluate the rationality of the selection of rock movement angle,and it was applied in a case study.The qualitative and quantitative evaluations of the mining movement limit were carried out,and the corresponding safety countermeasures and suggestions were proposed.

关 键 词：安全评价 充填法采矿 数值模拟 地表沉降 竖井位移 

分 类 号：TD853.34[矿业工程—金属矿开采]