高并段回采首层矿体的生产实践  

Production Practice on Stoping First Stratum of Orebody by High Merged Sublevel

作　　者：宋卫东[1] 任天贵[1] 王辉光[1] 明士祥[1] 南斗魁[2] 徐光中[2] 

机构地区：[1]北京科技大学 [2]马鞍山矿山研究院

出　　处：《金属矿山》1997年第7期9-12,共4页Metal Mine

摘　　要：为解决小官庄铁矿采掘和生产衔接紧张的矛盾，针对矿岩的具体开采条件，提出采用３种低采准比的采场结构：深孔中深孔并段、强制自然崩落并段和组合分段结构来回采首层矿体。在生产实践中获得了良好的技术指标，发展了无底柱分段崩落法在软弱破碎缓倾斜复杂矿体中的开采技术。In order to solve the join contradictory between the development and stoping,and directing against concrete mining conditions of ore and rock,the three stope structures of low development ratio is put forward,as merged sublevel by deep hole or medium deep hole,merged sublevel by forced or natural caving,and combined merged sublevel.The fine technical and economic index are gained in the production practice,and the mining technique using sublevel caving method in the complicated orebody of soft,break and gentle inclined is developed.

关 键 词：无底柱 分段崩落法 矿体首层 并段开采 采准比 

分 类 号：TD853.362[矿业工程—金属矿开采]