| 煤巷水力压挤防治瓦斯煤尘技术试验研究 |
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| 引用本文： | 陈学习,王佰顺.煤巷水力压挤防治瓦斯煤尘技术试验研究[J].中国安全科学学报,2008,18(5). |
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| 作者姓名： | 陈学习 王佰顺 |
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| 作者单位： | 1. 华北科技学院安全工程学院,北京,101601;中国矿业大学资源与安全工程学院,北京,100083
2. 中国矿业大学资源与安全工程学院,北京,100083;安徽理工大学资源开发与管理工程系,淮南,232001 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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国家科技攻关计划
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安徽省科技攻关计划重大项目 |
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| 摘 要： | 为解决掘进煤巷瓦斯突出、积聚和粉尘污染等问题,结合祁东煤矿的煤层开采条件,研究水力压挤技术,探讨水力压挤防治瓦斯煤尘机理,试验确定钻孔布置、封孔深度、注水压力、注水量与注水时间等工艺参数。研究结果表明:水力压挤可使试验工作面卸压带增宽0.7m左右,挤出近20%的煤层原始瓦斯,最高降尘率达78.7%;该技术对防治瓦斯突出、超限和煤尘污染有显著效果。试验研究取得的相关水力压挤工艺技术参数,为类似煤层条件技术实施提供了工作基础。
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| 关 键 词： | 煤巷掘进面 水力压挤 煤与瓦斯突出 瓦斯超限 煤尘污染 技术参数 |
Experimental Research on Gas and Dust Control Technology Base on Hydraulic Extrusion in Roadway |
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| CHEN Xue-xi,WANG Bai-shun.Experimental Research on Gas and Dust Control Technology Base on Hydraulic Extrusion in Roadway[J].China Safety Science Journal,2008,18(5). |
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| Authors: | CHEN Xue-xi WANG Bai-shun |
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| Abstract: | In order to solve problems of gas outburst, gas accumulation and dust pollution during the process of developing coal roadway, hydraulic extrusion technology suitable to coal seam condition in Qidong mine was studied. The mechanism of preventing gas and dust by hydraulic extrusion was discussed. Some technical parameters, such as borehole layout, depth of sealing borehole, water injection pressure, water injection quantity and time were determined by field experiment. The studied results show that the width of pressure relief area is increased 0.7 m after hydraulic extrusion, nearly 20 percent original gas in coal seam is extruded, and the highest dust elimination coefficient gets to 78.7 percent. The effect of hydraulic extrusion on preventing gas and dust is remarkable. The obtained technical parameters can provide work foundation for coal roadway with similar coal condition. |
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| Keywords: | driving face of coal roadway hydraulic extrusion coal and gas outburst gas overrun coal dust pollution technical parameters |
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