无底柱分段崩落法大结构参数实验研究  

LARGE STRUCTURE PARAMETER EXPERIMENTAL RESEARCH ON NO-PILLAR SUBLEVEL CAVING

作　　者：张国联[1] 宋守志[1] 邱景平[1] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110006

出　　处：《中国矿业》2003年第6期57-59,共3页China Mining Magazine

基　　金：国家科技部"十五"科技攻关课题

摘　　要：本文在分段高度 15m情况下对各种进路间距和放矿步距进行了三维模型实验。根据数理统计方法 ,通过Matlab编程求出表明进路间距、放矿步距与矿石回采率、岩石混入率、纯矿石回采率关系的回归方程。依此得出最佳进路间距为 16～ 17m ,最佳放矿步距为 5～ 6m。Under 15m sublevel height,the paper conducts thre dimensional model experiment on various drift interval and drawing pace.With the help of mathematical statistics method,the paper calculates the regression equation describing the relation between drift interval,drawing pace and rate of ore recovery,rate of rock drop in and rate of undiluted ore recovery by Matlab programming,through which the paper obtains the optimum drift interval and drawing pace,i.e.,16～17m and 5～6m respectively.

关 键 词：无底柱分段崩落法 结构参数 进路间距 放矿步距 数理统计 Matlab 矿石回采率 岩石混入率 回归方程 

分 类 号：TD853.31[矿业工程—金属矿开采] TD853.362[矿业工程—矿山开采]