| 地表沉陷初期漏风对采空区遗煤自燃影响的分析和治理措施 |
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| 引用本文： | 夏良,杨胜强,鹿存荣,李伟,孟海清,李树君.地表沉陷初期漏风对采空区遗煤自燃影响的分析和治理措施[J].煤矿开采,2012(1):86-88. |
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| 作者姓名： | 夏良 杨胜强 鹿存荣 李伟 孟海清 李树君 |
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| 作者单位： | 中国矿业大学安全工程学院;中国矿业大学煤炭资源与安全开采国家重点实验室;阳泉煤业(集团)有限责任公司冀北分公司元堡煤矿 |
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| 基金项目： | 国家自然科学基金重点项目:煤炭与煤层气双能源开采基础理论与方法研究(50834005),国家自然科学基金项目:含瓦斯风流对高瓦斯易燃煤体自燃氧化特性的影响及机理研究(51174198) |
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| 摘 要： | 煤层开采引起的地表沉陷能够产生与采空区贯通的裂缝,导致地面向采空区漏风,会引发采空区遗煤自燃。根据元堡煤矿9号煤层埋深浅、采用综采放顶煤技术、易自燃等特点,分析了地表沉陷初期漏风对采空区遗煤自燃的影响,通过对进、回风巷风量对比证实了地表漏风的存在,采取地表填土掩埋裂缝的措施,有效地解决了地表漏风的问题。
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| 关 键 词： | 地表沉陷 采空区 遗煤 自燃 |
Influence of Air-leakage on Coal Spontaneous Combustion in Gob and Prevention Measures at Initial Stage of Surface Subsidence |
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| XIA Liang,YANG Sheng-qiang,LU Cun-rong,LI Wei,MENG Hai-qing,LI Shu-jun.Influence of Air-leakage on Coal Spontaneous Combustion in Gob and Prevention Measures at Initial Stage of Surface Subsidence[J].Coal Mining Technology,2012(1):86-88. |
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| Authors: | XIA Liang YANG Sheng-qiang LU Cun-rong LI Wei MENG Hai-qing LI Shu-jun |
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| Affiliation: | 1.Safety Engineering School,China University of Mining & Technology,Xuzhou 221008,China; 2.State Key Laboratory of Coal Resource & Safety Mining,China University of Mining & Technology,Xuzhou 221008,China; 3.Yuanbu Colliery,Jibei Branch,Yangquan Coal(Group) Co.,Ltd,Shuozhou 037200,China) |
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| Abstract: | Surface subsidence induced by coal mining will generate fissures in surrounding rock which may form air-leakage passageway from surface to underground gob and result in spontaneous combustion of discarded coal in gob.In order to solve the problem of coal spontaneous combustion under full-mechanized mining condition,influence of air-leakage on coal spontaneous combustion in gob at initial stage of surface subsidence was analyzed.Comparison of air-inlet flow and air-return flow proved air-leakage from surface.Applying backfilling the fissures with surface earth effectively solved air-leakage problem. |
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| Keywords: | surface subsidence gob discarded coal spontaneous combustion |
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