| 提高南方煤矿极薄煤层瓦斯抽采效果关键技术研究 |
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| 引用本文： | 刘生龙,刘益文,蔡正委,赵建,邬运美.提高南方煤矿极薄煤层瓦斯抽采效果关键技术研究[J].西安科技大学学报,2011,31(3). |
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| 作者姓名： | 刘生龙 刘益文 蔡正委 赵建 邬运美 |
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| 作者单位： | 四川省安全生产监督管理局(四川煤矿安全监察局)安全技术中心,四川,成都,610041 |
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| 摘 要： | 针对开采极薄煤层(煤厚0.35～0.55 m)煤矿,矿井绝对瓦斯涌出量10～14 m3/min,能否抽采瓦斯的难题,选择了四川有代表性的5对煤矿,开展了煤层瓦斯基础参数的测定工作,系统地测定了四川须家河组煤层瓦斯压力和相关参数.根据各矿特点,进行了多种抽采瓦斯技术试验,得到了抽采极薄煤层瓦斯的最佳范围,形成了高位顶板钻孔和底板钻孔的抽采技术,解决了以卸压瓦斯涌出为主的极薄煤层抽采瓦斯技术难题,具有显著的安全效益.
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| 关 键 词： | 极薄煤层 抽采瓦斯 顶(底)板穿层钻孔 卸压瓦斯 |
Key technique of improving the discharging gas effect for filmy coal seam in southern China coal mines |
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| LIU Sheng-long,LIU Yi-wen,CAI Zheng-wei,ZHAO Jian,WU Yun-mei.Key technique of improving the discharging gas effect for filmy coal seam in southern China coal mines[J].JOurnal of XI’an University of Science and Technology,2011,31(3). |
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| Authors: | LIU Sheng-long LIU Yi-wen CAI Zheng-wei ZHAO Jian WU Yun-mei |
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| Institution: | LIU Sheng-long,LIU Yi-wen,CAI Zheng-wei,ZHAO Jian,WU Yun-mei(Safety Technology Center,of Sichuan Provincial,Administration of Work Safety(Coal Mine Safety Supervision Bureau)Chengdu 610041,China) |
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| Abstract: | For the problem of whether gas can be discharged in thin coal seams between 0.35~0.55 m and the absolute volume of mine feeder gas is between 10 and 14 cubic meters per minute,we selected five representative coal mines in Sichuan province,launching the mensuration of fundamental gas parameter,systematically measured the pressure and the related parameters of the Xujiahe Formation in Sichuan province.According to the characteristics of the various coal mines,we have carried out technique experiments for disc... |
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| Keywords: | filmy coal seam discharging gas drilled through seam roof or seam floor gas extraction |
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