| 无底柱分段分间浅孔采矿法矿柱回采放矿的应用 |
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| 引用本文： | 孙明胜,许侦. 无底柱分段分间浅孔采矿法矿柱回采放矿的应用[J]. 矿业研究与开发, 1996, 0(Z1) |
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| 作者姓名： | 孙明胜 许侦 |
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| 作者单位： | 狮子山硫铁矿!安徽244031(孙明胜)，铜陵有色职工大学!安徽244031(许侦) |
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| 摘 要： | 无底柱分段分间浅孔采矿法的二步骤回采,使矿体总回采率达80%以上,贫化率降到5%以下,出矿品位常年保持在34%～38%,经济效益稳步上升.
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| 关 键 词： | 无底柱浅孔采矿法 矿柱矿层 二步骤回采 |
AN APPLICATION OF PILLAR EXTRACTION AND ORE DRAWING OF PILLARLESS SUBLEVEL ROOM SHORTHOLE STOPING |
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| Sun Mingsheng. AN APPLICATION OF PILLAR EXTRACTION AND ORE DRAWING OF PILLARLESS SUBLEVEL ROOM SHORTHOLE STOPING[J]. Mining Research and Development, 1996, 0(Z1) |
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| Authors: | Sun Mingsheng |
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| Affiliation: | Sun Mingsheng (Shizishan Troilite Mine)Xu Zhen (Tongling Staff Workers University of Nonferrous Metals) |
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| Abstract: | Two-step extraction of pillarless sublevel room shorthole stroping maked the total recovery of orebody be more than 80%,the dilution rate decrease to less than 5% and the grade of ore removal keep 34%-38% annually. The economic result has been in-creased constantly. |
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| Keywords: | Pillarless shorthole stoping Pillar Room Two-step extraction |
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