| 安顺煤矿超前排放钻孔有效排放半径研究及应用 |
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| 引用本文： | 杨纯东.安顺煤矿超前排放钻孔有效排放半径研究及应用[J].能源环境保护,2014,28(5):24-27. |
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| 作者姓名： | 杨纯东 |
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| 作者单位： | 昆明煤炭设计研究院,昆明,650011 |
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| 摘 要： | 为了解决瓦斯排放孔半径测定过程中由于方法选择和操作等原因而出现的测定结果不够准确,以及由此而导致的空白带出现问题,通过现场试验,采用钻屑解吸指标法测定的方法,通过对测定结果进行综合分析、修正,确定安顺煤矿Φ42 mm直径的排放钻孔有效作用半径为R0.25 m,Φ90 mm直径的排放钻孔有效作用半径为R0.55 m,经实践证明是准确和可靠的,排放钻孔措施在实施过程中有效地避免了空白带的出现。
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| 关 键 词： | 超前排放钻孔 排放半径 钻屑解吸指标法 |
STUDY ON ANSHUN COAL MINE ADVANCE DRILL HOLE EFFECTIVE EMISSION RESEARCH ANDAPPLICATION OF RADIUS |
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| YANG Chun-dong.STUDY ON ANSHUN COAL MINE ADVANCE DRILL HOLE EFFECTIVE EMISSION RESEARCH ANDAPPLICATION OF RADIUS[J].Energy Environmental Protection,2014,28(5):24-27. |
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| Authors: | YANG Chun-dong |
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| Institution: | YANG Chun-dong ( Kunming coal design and Research Institute, Kunming 650011,China) |
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| Abstract: | In order to solve the gas discharge hole radius determination method selection and operation process due to reasons such as determination ofresults is not accurate enough, and the blank resulting with problems,through field test, the method for determination of desorption index of drill cuttings law,through comprehensive analysis, to determine the correction, determine theeffective emissions Anshun coal mine borehole radius diameter：42mm R 〈0.25m, effective emission hole radius diameter： 90mm R 〈 0.55m, and it was proved to be accurate and reliable, core measures in the imolementation Process to avoid the empty leukorrhea. |
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| Keywords: | Advance borehole discharge Emission radius Desorption index of drill cuttings law |
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