露天转地下覆盖层物料结构的移动特性及对回采指标的影响  

On the Movement Characteristics of Material Structure of Overburden Cover during the Transferring from Open pit into Underground Mining and its Influence on Ore Mining Indexes

作　　者：刘海林[1] 王亨炎[2] 

机构地区：[1]中钢集团马鞍山矿山研究院有限公司 [2]马钢国际贸易总公司

出　　处：《金属矿山》2010年第6期38-39,47,共3页Metal Mine

基　　金："十一五"国家科技支撑计划项目(编号:2006BAB02A03)

摘　　要：矿山露天转地下开采时,地下开采若选用崩落法,覆盖层的物料结构(主要是物料的块度组成)对于回采指标有着重要的影响。主要针对覆盖层,研究其不同块度岩石的移动特性,以及不同块度组成对于矿石回采指标的影响。When open pit is transferred into underground mining,the material structure of overburden cover has an important impact on mining indicator with the underground caving mining.The indicator mainly refers to the lump composition of overburden cover.Aiming at the lump composition,the rock movement characteristics of different lumps and the influence of different lumps composition on ore mining indexes are studied.

关 键 词：崩落法 覆盖层 块度组成 移动特性 

分 类 号：TD861.1[矿业工程—金属矿开采]