上向水平分层充填采矿法回采技术改进及应用
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摘要
江西金山金矿体以缓倾斜薄至中厚矿体为主,针对部分10 m以上的中厚矿体,提出了采用上向水平分层充填采矿方法开采,并对凿岩爆破工艺进行改进,提出了一种浅孔凿岩扇形布孔的回采工艺。通过在江西金山金矿的实践表明:该技术可操作性强,采场生产能力由67 t/d提高到124 t/d,降低了采矿成本,保障了作业安全性,增加了企业经济效益。
The ore bodies of Jinshan Gold Mine in Jiangxi are mainly gently inclined thin to medium thick ore bodies. The study came up with upward horizontal slicing and filling mining method to mine part of the medium thick ore bodies with the thickness over 10 m,and renovated the drilling and blasting process,leading to a short-hole drilling and fan-shaped hole alignment high-efficient stoping process. The practice in Jinshan Gold Mine in Jiangxi shows that the process is highly applicable,raising the stope production capacity from 67 t/d to 124 t/d,lowering mining cost,guaranteeing operation safety and improving profitability for enterprises.
The ore bodies of Jinshan Gold Mine in Jiangxi are mainly gently inclined thin to medium thick ore bodies. The study came up with upward horizontal slicing and filling mining method to mine part of the medium thick ore bodies with the thickness over 10 m,and renovated the drilling and blasting process,leading to a short-hole drilling and fan-shaped hole alignment high-efficient stoping process. The practice in Jinshan Gold Mine in Jiangxi shows that the process is highly applicable,raising the stope production capacity from 67 t/d to 124 t/d,lowering mining cost,guaranteeing operation safety and improving profitability for enterprises.
引文
[1]李树鹏,姜磊,张君鹏.盘区机械化上向水平分层充填采矿法在大尹格庄金矿的应用[J].黄金,2016,37(8):43-46.
[2]伊万诺夫,杨培章.上向水平分层充填法回采效率的提高[J].国外金属矿采矿,1985(3):67-70.
[3]周旭,阳雨平,王贻明,等.上向水平分层充填法的优化研究[J].矿业快报,2008(8):63-66.
[4]孙宏生.浅孔采矿方法在缓倾斜中厚矿体中的应用[J].金属矿山,2006(9):29-33.
[5]李云,刘霁.岩石中浅孔爆破特性的数值模拟[J].中南大学学报(自然科学版),2012,43(4):1 519-1 522.
[6]张自政,柏建彪,陈勇,等.浅孔爆破机制及其在厚层坚硬顶板沿空留巷中的应用[J].岩石力学与工程学报,2016,35(增刊1):3 008-3 017.
[2]伊万诺夫,杨培章.上向水平分层充填法回采效率的提高[J].国外金属矿采矿,1985(3):67-70.
[3]周旭,阳雨平,王贻明,等.上向水平分层充填法的优化研究[J].矿业快报,2008(8):63-66.
[4]孙宏生.浅孔采矿方法在缓倾斜中厚矿体中的应用[J].金属矿山,2006(9):29-33.
[5]李云,刘霁.岩石中浅孔爆破特性的数值模拟[J].中南大学学报(自然科学版),2012,43(4):1 519-1 522.
[6]张自政,柏建彪,陈勇,等.浅孔爆破机制及其在厚层坚硬顶板沿空留巷中的应用[J].岩石力学与工程学报,2016,35(增刊1):3 008-3 017.