张家洼铁矿沿脉无底柱分段崩落法结构参数试验研究  

EXPERIMENTAL RESEARCH ON STRUCTURE PARAMETEROF NON-PILLAR SUBLEVEL CAVING ALONG VEIN OF ZHANGJIAWA IRON MINE

作　　者：张国联[1] 宋健[1] 刘兴国[1] 

机构地区：[1]东北大学,沈阳110004

出　　处：《中国矿业》2005年第9期45-48,共4页China Mining Magazine

基　　金：国家十五攻关课题"大间距集中化开采新工艺研究"

摘　　要：以鲁中矿业集团公司张家洼铁矿缓倾斜薄矿体条件为背景,采用实验室模拟试验方法,研究了沿脉布置进路无底柱分段崩落法结构参数与回收指标的关系,并优选了结构参数,在经济比较的基础上,确定了分段高度的推荐值,为矿山深部开采提供理论依据。On the background of Zhangjiawa iron mine＇s slow incline and thin ore body condition of Luzhong metallurgy mining group company, the paper has researched the relation between constructional parameter and recovery index of along vein collocating drift＇s non-pillar sublevel caving through adopting simulating experimental method in laboratory and has optimized constructional parameter. On the base of economy comparison, the paper has made certain the commend value of sublevel height in order to provide theory basis for Zhangjiawa iron mine deeply mining.

关 键 词：无底柱分段崩落法 分段高度 开岩角度 放矿步距 

分 类 号：TD853.31[矿业工程—金属矿开采]