踏步式上向水平分层充填采矿法在新城金矿的应用  

Application of reciprocative upward horizontal cut and fill mining method in Xincheng Gold Mine

作　　者：国绍林 宋召法 由伟 刘滨 刘晓光 Guo Shaolin;Song Zhaofa;You Wei;Liu Bin;Liu Xiaoguang(Shandong Gold Mining Co.,Ltd)

机构地区：[1]山东黄金矿业股份有限公司

出　　处：《黄金》2018年第5期27-30,共4页Gold

基　　金：国家自然科学青年基金项目(51504044);中国博士后科学基金面上项目(2015M570607);重庆市基础科学与前沿技术研究专项一般项目(cstc2016jcyjA 1861)

摘　　要：针对新城金矿Ⅴ号矿体机械化上向水平分层充填采矿法中二步采场受一步采场充填滤水渗流影响,造成二步采场围岩条件逐渐恶化的问题,提出了采用踏步式上向水平分层充填采矿法进行开采,通过改变原采矿方法的回采顺序,形成一种循环踏步的"踏步式"回采形式。工程应用表明,踏步式上向水平分层充填采矿法采场生产能力1 120 t/d、采矿损失率4.6%和矿石贫化率4.5%,不仅经济技术指标优良,还极大地改善了二步采场作业条件,可为同类型矿山开采提供借鉴。In the mining process of Orebody V in Xincheng Gold Mine,which is mined by mechanized upward horizontal cut and fill method,Stage 2 stope is affected by the filling water seepage from Stage 1 stope,leading to deteriorating surrounding rock conditions of the former stope. In light of the problem,the paper proposed the reciprocative upward horizontal cut and fill mining method. With the extraction sequence of the previous method modified,a reciprocative extraction process is formed. Engineering practice shows that the reciprocative upward horizontal cut and fill mining method has production capacity of 1 120 t/d,mining loss rate of 4. 6 % and ore dilution rate of 4. 5 %. The method not only has good economic and technical index,but also greatly improves the operation conditions in the Stage2 stope. The study can be used as reference by similar mines.

关 键 词：充填采矿 上向水平分层充填采矿法 踏步回采 充填滤水 回采顺序 

分 类 号：TD853.34[矿业工程—金属矿开采]