| 单一特厚煤层瓦斯有效抽放半径测定 |
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| 引用本文： | 常晓红.单一特厚煤层瓦斯有效抽放半径测定[J].煤矿安全,2012,43(5):83-85. |
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| 作者姓名： | 常晓红 |
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| 作者单位： | 山西省煤炭工业厅,山西太原,030012 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目，国家自然科学基金青年科学基金资助项目 |
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| 摘 要： | 介绍了瓦斯抽放钻孔有效抽放半径的测试方法,并通过采用钻孔测试法以瓦斯压力p及钻孔瓦斯浓度η为考察指标来确定亭南煤矿某一直径钻孔的有效瓦斯抽放半径。经过现场考察及对测定数据的分析,最终确定亭南煤矿4#煤层抽放钻孔的有效抽放半径及抽放时间,为煤矿的瓦斯抽放钻孔的合理布置提供了依据。
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| 关 键 词： | 有效抽放半径 瓦斯压力 单一特厚煤层 钻孔瓦斯浓度 |
Measurement of Gas Effective Drainage Radius in Single Special Thick Seam |
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| CHANG Xiao-hong.Measurement of Gas Effective Drainage Radius in Single Special Thick Seam[J].Safety in Coal Mines,2012,43(5):83-85. |
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| Authors: | CHANG Xiao-hong |
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| Affiliation: | CHANG Xiao-hong(Department of coal industry of Shanxi Province,Taiyuan 030012,China) |
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| Abstract: | The paper introduced the measurement method of effective drainage radius of gas drainage hole.Taking gas pressure p and drilling hole gas concentration η as investigation targets,the effective drainage radius of one diameter drilling hole in Tingnan coal mine was determined by using borehole test method.Through the spot examination and the analysis of measured data,finally,the effective drainage radius and drainage time of drainage hole in Tingnan coal mine No.4 coal seam were determined,which provided a basis for the rational layout of coal mine gas drainage drilling. |
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| Keywords: | effective drainage radius gas pressure single special thick seam drilling hole gas concentration |
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