无底柱分段崩落法放矿数值模拟  

Numerical Simulation of Ore Drawing under Non-pillar Sublevel Caving Method

作　　者：王平[1,2] 李彬[2] 李艳[2] 马俊[2] 

机构地区：[1]华中科技大学,湖北武汉430074 [2]武汉科技大学资源与环境工程学院,湖北武汉430081

出　　处：《矿业研究与开发》2013年第6期12-14,30,共4页Mining Research and Development

摘　　要：结合程潮铁矿实际采场情况,利用PFC3D软件,对放矿过程进行数值模拟实验,验证了椭球体放矿理论。根据数值模拟结果,对采场结构参数进行优化,分析不同放矿步距下矿石回收情况,结合该矿的生产现状,提出现行放矿步距扩大至3.0m的建议。Combined with the actual situation of Cheng-chao Iron, numerical simulation of ore drawing experiment was carried out by means of PFC3D software, and the ellipsoid drawing theory was verified. According to the simulated re- suit, the stope parameters were optimized, and ore recovery under different ore steps was analized. It is concluded that the existing ore step should be expanded to 3.0 m under the current production of thismine.

关 键 词：无底柱分段崩落法 放矿布距 回收率 PFC数值模拟 

分 类 号：TD853.36[矿业工程—金属矿开采]