基于3D-σ对云锡卡房锡矿13-2矿体回采方案研究  

Study on 3D-σ for the 13-2 Ore Body in the Tin Mine of Yunxi-Tin

作　　者：刘泽乾 侯克鹏 杨八九 LIU Ze-qian;HOU Ke-peng;YANG Ba-jiu(Yunnan Tin Co.,Ltd.Gejiu 661000 Yunnan,China;Yunnan Yarong Mining Technical Co.Ltd.,Kunming 650093,Yunnan,China)

机构地区：[1]云南锡业股份有限公司,云南个旧661000 [2]云南亚融矿业科技有限公司,云南昆明650093

出　　处：《铜业工程》2018年第3期27-33,共7页Copper Engineering

摘　　要：介绍了矿体回采顺序对矿体稳定性的重要影响,并介绍了研究矿山回采顺序的几种方法,通过3D-σ软件对卡房13-2矿体253~254线矿体回采方案、采矿方法、采场结构参数及回采顺序的数值模拟研究分析,发现针对卡房分矿13-2矿体花岗岩倒转部分的矿体,由于花岗岩揭露后容易风华,稳定性较差,采用空场法进行开采无法满足安全要求。卡房13-2花岗岩倒转部分矿体,采用进路式胶结充填能减少顶板及围岩的变形,但采用隔三采一效果要好于隔一采一。13-2矿体253~254线较优的回采顺序是采场垂直走向布置,矿体从东往西开采。In this paper, the important influence of orebody stoping sequence on the orebodystability is introduced,and several methodsof researching mining stoping sequence are introduced. After researching and analyzing the numerical modeling of recovery plan, mining method and stope structure parameters and stoping sequence of the card room 13-2 orebody 253 ~ 254 line orebody with3 D-sigma software, we found the card room points of 13-2 orebody granite reversal of orebody, open stoping method which is used for mining cannot meet the safety requirements because the granite exposed easy to wind and the stability is poor.For the card room 13-2 granite inverted part of ore body, we adopt the approach of cemented filling mining method which can maximum inhibition of roof and the deformation of the surrounding rock, but the extraction effect with the solution of every three is better than the one by one. The optimal stoping order of the ore body 253 ~ 254 is the vertical layout of the stope, and the ore body is mined from east to west.

关 键 词：3D-σ 回采方案 空场法 上向胶结充填法 回采顺序 残矿 

分 类 号：TD8[矿业工程—矿山开采]