| 采空区瓦斯流动规律及分源抽放技术的应用 |
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| 引用本文： | 何志刚,卢杰,韩兆彦,吕自伟,李豪.采空区瓦斯流动规律及分源抽放技术的应用[J].煤炭科学技术,2011,39(6):33-35. |
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| 作者姓名： | 何志刚 卢杰 韩兆彦 吕自伟 李豪 |
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| 作者单位： | 安阳鑫龙煤业(集团)有限责任公司,河南安阳,455000 |
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| 摘 要： | 为降低回采工作面采空区的瓦斯涌出及上隅角瓦斯浓度,对采空区顶板裂隙变化及瓦斯流动规律进行了理论分析,基于此,对主焦煤矿21141工作面的瓦斯抽放提出了分源抽放的综合治理方法,即上隅角采用埋管抽放,顶板裂隙内瓦斯采用高位钻场钻孔抽放。应用结果表明:分源抽放技术的应用使得21141回采工作面上隅角瓦斯体积分数由原来的0.6%左右下降到0.4%,高位钻场单孔瓦斯抽放体积分数平均为34%,瓦斯流量为0.062 m3/m in,这在一定程度上降低了采空区瓦斯的涌出量,保证了工作面安全生产。
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| 关 键 词： | 采空区 瓦斯 分源抽放 上隅角埋管抽放 高位钻场钻孔抽放 |
Goaf Gas Flow Law and Application of Gas Drainage Technology with Separated Gas Resources |
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| HE Zhi-gang,LU Jie,HAN Zhao-yan,L Zi-wei,LI Hao.Goaf Gas Flow Law and Application of Gas Drainage Technology with Separated Gas Resources[J].Coal Science and Technology,2011,39(6):33-35. |
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| Authors: | HE Zhi-gang LU Jie HAN Zhao-yan L Zi-wei LI Hao |
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| Affiliation: | HE Zhi-gang,LU Jie,HAN Zhao-yan,Lü Zi-wei,LI Hao(Anyang Xinlong Coal Mining Group Corporation Ltd.,Anyang 455000,China) |
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| Abstract: | In order to reduce the gas emission from the goaf of the coal mining face and the gas content at the upper corner of the coal mining face,a theoretical analysis was conducted on the roof crack variation and the gas flow law of the goaf.Based on the circumstance,a comprehensive gas drainage control method with the separated gas resources,including the gas drainage with the buried pipeline at the upper corner and the gas drainage with boreholes drilled at the high level drilling site for the roof cracks was p... |
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| Keywords: | goaf gas with separated gas resources gas drainage with buried pipeline ot upper corner gas drainage with boreholes drilled at high level drilling site |
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