摘要
高分段大间距结构参数是无底柱分段崩落法的发展趋势,结合某铁矿矿体赋存状况及生产条件,对影响无底柱分段崩落法的分段高度、进路间距及崩矿步距三个重要因素进行正交设计,运用PFC3D数值模拟软件,对确定的9组不同的结构参数模型进行放矿模拟。由试验结果可知分段高度14m,进路间距16m,崩矿步距3m的采场结构参数最优。
High segmented and Large pitch structure parameters are sublevel caving development trends, combined with a iron ore body condition and production conditions, the three important factors including sublevel height, between-access space and caving step distance which affecting sublevel caving, are orthogonal designed. Using numerical simulation software PFC3D, nine different sets of structural parameters models are simulated to ore drawing. From the test results, the sublevel height of 14m, between-access space of 16m, caving step distance of 3m were optimal stope structural parameters.
出处
《铜业工程》
CAS
2015年第2期40-43,共4页
Copper Engineering
关键词
无底柱分段崩落法
正交试验
数值模拟
采场结构参数
sublevelcaving
orthogonaldesign
numerical simulation
stopestructuralparameters
PFC3D
