双指标出矿管理方法在采场出矿中的应用  

Application of Drawing Management Method Using Two-indexes on Drawing of Stope

作　　者：徐光中[1] 

机构地区：[1]马鞍山矿山研究院

出　　处：《金属矿山》1996年第10期10-12,31,共4页Metal Mine

摘　　要：在无底柱分段崩落法的采场出矿管理中，采用出矿量和截止出矿品位两个指标来确定放矿截止时间。同时，应用磁化率仪测定夹石厚度和快速测定当次品位。实践证明，双指标出矿管理方法取得了较好的效果，能有效地防止丢矿和过贫化的现象。In the process of a drawing management of stope by sublevel caving method,the stoppedtime of drawing operation is determined based on two-indexes of both drawing volume and cut-offgrade. Simultaneously,the thickness of mixed rock and grade at that time are measured with great speedby magnetic susceptibility instrument. The practice confirms that the two-indexes management methodhave obtained better efficiency with the prevention of ore loss and dilution efficiently.

关 键 词：采场 出矿管理 出矿量 磁化率 双指标出矿 

分 类 号：TD85－9[矿业工程—金属矿开采]