某急倾斜中厚矿体的分段凿岩阶段矿房法  

Sublevel Stage Room Stoping Method for Steeply Inclined Medium Thickness Ore-body

作　　者：戴超群 吴爱祥[2] 鲍伟伟 Dai Chaoqun;Wu Aixiang;Bao Weiwei(Stato Key Laboratory of High-efficient Mining and Safety of Metal Mines,Ministry of Education,Beijing 100083,China;School of Civil and Environmental Engineering,University of Science and Technology Belting,Bering 100083,China)

机构地区：[1]金属矿山高效开采与安全教育部重点实验室,北京100083 [2]北京科技大学土木与环境工程学院,北京100083

出　　处：《金属矿山》2018年第8期29-32,共4页Metal Mine

基　　金：国家"十三五"重点研发计划课题项目(编号:2017YFC0602903)

摘　　要：赣南某硅矿属于急倾斜中厚矿体。针对原采矿方法中存在的生产成本高,排土场占地面积大,环境污染严重,矿石损失贫化率高的问题,提出了分段凿岩阶段矿房法开采新方案。新方案基于矿体和围岩均稳固的矿岩性质,设计采场的长度、阶段高度分别为60 m、50 m,采用机械化程度高的ZWY-60/15T0型扒矿机联合DKC12地下矿用汽车回采,增大采场生产能力,降低矿石的损失率和贫化率,减少矿石开采成本。生产实践表明:新方案经济效益明显增加,采矿成本每吨降低17.8%,矿石损失率和贫化率分别下降4个百分点和5个百分点,进一步实现了矿山高效开采和保障了采矿的作业安全,可为其他类似矿山的开采提供借鉴。A silicon mine in south Jiangxi province belongs to a kind of steeply inclined medium-thickness ore-body. A new scheme of sublevel stage room stoping method was proposed to deal with problems of high production costs,large dumping field occupied,serious environmental pollution and high ore loss and dilution rate caused by the original mining method of the mine. Based on the stable properties of ore bodies and surrounding rocks,the stope length and height in the new scheme was designed as 60 m and 50 m separately,and the highly mechanized ZWY60/15 T0 scraper and DKC12 underground dump truck mining were jointly adopted to increase the production capacity,lower the ore loss and dilution rate and reduce mining cost. The production results show that the economic efficiency of the new scheme is improved obviously with the mining cost decreased by about 17.8 %,ore loss and dilution decreased by 5 % and 4 % respectively. Further,this scheme realizes the mining of high efficiency and ensures the safety of mining operations. It can provide as a reference for other similar mines.

关 键 词：分段凿岩阶段法 采矿工艺 急倾斜中厚矿体 高效开采 

分 类 号：TD879[矿业工程—非金属矿开采]