安庆铜矿不规则二步骤矿柱采场回采实践
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摘要
本文针对安庆铜矿两侧矿房回采后矿体形态极不规整的"二步骤"矿柱采场,提出了小孔径VCR法掏槽及扇形中深孔侧向崩矿的回采方案,克服了传统钻凿切割天井掏槽采切比高、劳动强度大、安全性差等缺点,为矿山持续高产、稳产提供了技术保证。不仅取得了显著的经济效益,而且对类似矿山相似采场的回采有良好的参考作用。
This paper focuses on the form of ore body and irregular "two steps" of the pillar stope after the exploitation of the two sides of Anqing Copper Mine Deposit stope mining,proposing the solutions of Medium-length Ring Blasting Subdrifting and small aperture "VCR" method,for overcoming the high ratio of traditional drilling cutting mining,low efficiency,labor intensity,poor safety and so on.Besides,the solutions brought the benefits of increasing the high and stable production,ensuring the technical skills,and achieving significant economic effectiveness.Moreover,the methods can also provide a reference for other related coal mining.
This paper focuses on the form of ore body and irregular "two steps" of the pillar stope after the exploitation of the two sides of Anqing Copper Mine Deposit stope mining,proposing the solutions of Medium-length Ring Blasting Subdrifting and small aperture "VCR" method,for overcoming the high ratio of traditional drilling cutting mining,low efficiency,labor intensity,poor safety and so on.Besides,the solutions brought the benefits of increasing the high and stable production,ensuring the technical skills,and achieving significant economic effectiveness.Moreover,the methods can also provide a reference for other related coal mining.
引文
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[9]于亚伦.工程爆破理论与技术[M].北京:冶金工业出版社,2003:252-259.
[2]杨小聪,陈忠辉.安庆铜矿开采过程的数值模拟[J].有色金属,2007,36(2):82-87.
[3]北京矿冶研究总院.安庆铜矿深部开采尾砂胶结充填试验研究[J].安庆铜矿,2005(1).
[4]郭利杰.废石尾砂胶结充填体基础力学研究[J].矿冶,2007(6).
[5]黄玉焕.大直径深孔爆破技术在矿柱回采中的应用[J].金属矿山,2002,307(1):19-21.
[6]李爱兵,周先明.安庆铜矿高阶段回采充填体—矿体—岩体稳定性的有限元分析[J].矿业研究与开发,2000,20(1):19-20.
[7]李明,李立群,赵勇.分段凿岩阶段矿房法在金岭铁矿的应用[J].金属矿山,2008,21(11):9-11.
[8]洪增友.分段凿岩阶段矿房法爆破工艺的实践[J].矿业研究与开发,2000,20(5):45-47.
[9]于亚伦.工程爆破理论与技术[M].北京:冶金工业出版社,2003:252-259.
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