基于PFC2D软件的太平矿业公司自然崩落采矿法拉底方式优选  

Optimized undercut means selection of block caving mining method in Pacific Mining Company based on PFC2D software

作　　者：程文文 Cheng Wenwen(Changchun Gold Research Institute Co.,Ltd.)

机构地区：[1]长春黄金研究院有限公司

出　　处：《黄金》2022年第3期40-43,共4页Gold

基　　金：中国黄金集团有限公司科研项目(ZJKJ-2019-CK004)。

摘　　要：针对太平矿业公司自然崩落采矿法回采工艺中不同拉底方式优选问题,采用PFC2D软件进行对比模拟分析。模拟不同拉底方式下,不同拉底推进距离对应的应力变化规律,最终确定太平矿业公司最优拉底方式为前拉底,拉底推进距离25~30 m,该距离范围内底部结构及出矿工程所受压力相对较小,底部结构整体稳定性较好,有利于支护成本的降低,可为矿山下一步安全高效回采提供理论指导。In view of the different undercut means in the block caving mining process of Pacific Mining Company,the PFC2D software is used for comparative simulation and analysis.By simulating the stress change law corresponding to different undercut advance distance,it is finally determined that the optimal undercut means is forward undercut for Pacific Mining Company,and the undercut advance distance is 25-30 m.Within the distance,the pressure on the bottom structure and ore-drawing engineering is relatively small,and the overall stability of the bottom structure is good,which is conducive to lowering support cost.The means can provide theoretical guidance for the next-step safe and efficient mining in mines.

关 键 词：自然崩落采矿法 PFC2D软件 数值模拟 拉底方式 推进距离 

分 类 号：TD853.36[矿业工程—金属矿开采]