无底柱分段崩落法出矿控制点与矿岩块度关系的实验研究  

ORE/ROCK SIZE EFFECTS ON THE ORE DRAWING CONTROL IN SUBLEVEL CAVING

作　　者：任凤玉[1] 康培生 

机构地区：[1]东北大学,沈阳110006 [2]白银铜矿,730900

出　　处：《中国矿业》1998年第6期25-27,共3页China Mining Magazine

摘　　要：为应用无底柱分段崩落法的矿山合理实施低贫化放矿方式，本文依据矿、岩两相散体的流动特性，并结合实验现象，研究了合理的出矿控制点与矿、岩块度的相对大小的关系，提出了放矿控制点的确定方法。In this paper, a moldel of ore drawing for low dilution is described. Three experiments of oredrawing in sublevel caving, those caved lump rock is biger than, equal to and smaner than blasted ore respectively, was made. It has been found that optimal results of ore drawing in sublevel caving can be obtained by adoption of ore drawing control in which the blasted ore is to be drawn until the caved rock appeared on the outlet ofore drawing when the rock is biger than or equal to the ore, and, for other cases, drawn until the rock wasflowing out of the outlet consecutively.

关 键 词：无底柱 分段崩落法 出矿控制点 矿岩块度 采矿 

分 类 号：TD853.361[矿业工程—金属矿开采]