顶底板围岩不稳的缓倾斜中厚以上矿体的采矿新方案  

A new mining program for gentle-inclined, medium thick and above orebody with unstable roof and floor

作　　者：丁钦贡[1] 

机构地区：[1]北京科技大学

出　　处：《化工矿山技术》1992年第5期17-21,共5页

摘　　要：密集平行束孔落矿的底盘漏斗采矿方案的特点是:用密集严行束孔落矿;凿岩与出矿水平合二为一;实行“掘井、劈漏、落矿三位一体”的回采工艺。该方案结构简单、采切比低、工人劳动强度低,适于开采缓倾斜顶底围岩不稳固的中厚以上矿体。The mining program of concentrated parallel bunch blast holes and floor-funnel mining features the ore blowing-down with concentrated parallel bunch blastholes.the drilling and haulage at same level, 'three-in-one'actual mining of shaft drilling, funnel openingout and ore blowing-down. The program is suitable for mining the gentle- inclined, medium thick and above orebody with unstable roof and floor with advantages of simple structure, lower ratio of extraction-to-cut and loss labour intensity.

关 键 词：采矿工程 厚矿体 顶板 底板 围岩 

分 类 号：TD853.252[矿业工程—金属矿开采]