二矿区1000m中段水平矿柱开采研究及实践  

Research and Practice of 1000m Level Pillar Mining on No.2 Mining Area

作　　者：张利 苏晓萍 陈仲杰[3] 寇永渊[3] Zhang Li;Su Xiao-ping;Chen Zhong-jie;Kou Yong-yuan

机构地区：[1]镍钴资源综合利用国家重点实验室 [2]金川镍钴研究设计院 [3]金川集团股份有限公司二矿区

出　　处：《金川科技》2020年第4期5-8,20,共5页Jinchuan Science and Technology

摘　　要：二矿区即将转人1000m中段水平矿柱开采,面临诸多开采困难和技术难题。随着1000m中段向下延深,矿体逐渐变薄,所承受的应力逐渐增大。如何顺利开采1000m中段底部水平矿柱成为二矿区面临的一个难题。通过对二矿区1000m中段水平矿柱如何安全、高效、合理地回收进行了广泛深入细致的研究,确定了986m分段开采水平矿柱,970m水平新掘矿石运输道的矿柱回收方案。目前,1000m中段水平矿柱工程建设正常进行,为深部水平矿柱的开采积累丰富的经验,提供良好的借鉴和指导。Mining is about to go on the horizontal pillar of 1000m level in the No.2 Mining Area,which is faced with many mining difficulties and technical problems.With the downward extension of 1000m level,the borizontal pillar becomes thinner and the stress it bears increases gradually.How to mine the horizontal pllar at the bottom of 1000m level is a dificult problem in No.2 Mining Area.Through extensive and detailed research on how to mine 1000m level pllar safely,eficiently and reasonably in No.2 Mining Area,it is determined to mine level pllar on the 986m sublevel and to newly excavate 970m level ore transport channel.At present,the construc-tion of 1000m level horizontal pillar project is under normal operation,which will accumulate rich experience and provide good reference and guidance for the mining of deep horizontal pillar.

关 键 词：二矿区1000m中段 水平矿柱 986m分段 970m运输道 

分 类 号：TD8[矿业工程—矿山开采]