| 基于实时监测数据的综采工作面瓦斯涌出特征分析 |
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| 引用本文： | 张仕和,才庆祥,陈开岩.基于实时监测数据的综采工作面瓦斯涌出特征分析[J].采矿与安全工程学报,2012(4):586-590. |
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| 作者姓名： | 张仕和 才庆祥 陈开岩 |
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| 作者单位： | 中国矿业大学矿业工程学院;贵州盘江投资控股(集团)有限公司;中国矿业大学安全工程学院 |
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| 基金项目： | 国家自然科学基金重点项目(51034005);煤炭资源与安全开采国家重点实验室自主研究课题项目(SKLCRSM10X01);中央高校基本科研业务费专项资金项目(2010QNA33) |
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| 摘 要： | 根据盘江煤电公司土城煤矿15158综采工作面的瓦斯实时监测数据,采用数理统计的方法,分析工作面顶板来压和推进速度与瓦斯涌出之间的关系。研究表明,工作面瓦斯涌出的总体平均水平与工作面采煤推进速度关系密切。每班割煤刀数多,总体平均瓦斯涌出量则大,明显呈现出与工作面从初采、稳产到收尾3阶段产量相应变化的3个区域。工作面平均绝对瓦斯涌出量与班产量有很强的负幂函数关系;顶板来压是工作面瓦斯峰值出现、导致瓦斯涌出不均衡的主要原因。
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| 关 键 词： | 综采工作面 瓦斯涌出 瓦斯监测 顶板来压 瓦斯峰值 |
Characteristics of the Gas Emission Rate Based on the Monitoring Data in the Fully-Mechanized Working Face |
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| ZHANG Shi-he,CAI Qin-xiang,CHEN Kai-yan.Characteristics of the Gas Emission Rate Based on the Monitoring Data in the Fully-Mechanized Working Face[J].Journal of Mining and Safety Engineering,2012(4):586-590. |
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| Authors: | ZHANG Shi-he CAI Qin-xiang CHEN Kai-yan |
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| Affiliation: | 1.School of Mines,China University of Mining & Technology,Xuzhou,Jiangsu 221116,China; 2.Guizhou Panjiang Investment Holding(Group) Corporation Ltd.,Guiyang,Guizhou 550004,China; 3.Faculty of Safety Engineering,China University of Mining & Technology,Xuzhou,Jiangsu 221116,China) |
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| Abstract: | The relation of gas emission,the two factors of the roof weighting and the advancing speed of working face are analyzed by the method of mathematical statistics according to the airflow and gas monitoring data for No.15158 longwall panel of Tucheng coal mine in Panjiang Coal Group.The result shows that the average of absolute gas emission rate of the working face closes to the cutting speed of the shearer.The overall average gas emission rate increases with the speed of the periodic progress per shift.The gas concentration presents three areas corresponding to the initial mining,normal mining and finishing work.Furthermore,there is a negative power function relation between the average of absolute gas emission rate and production per shift.The gas peak and uneven emission are mainly caused by the periodic roof weighting. |
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| Keywords: | fully-mechanized working face gas emission gas monitoring roof weighting gas peak value |
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