| 运河煤矿13_下04综放面采空区自燃危险区域划分 |
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| 引用本文： | 李青海,秦忠诚,黄冬梅,蒋凌强,李鹏. 运河煤矿13_下04综放面采空区自燃危险区域划分[J]. 山东科技大学学报(自然科学版), 2009, 28(3): 28-33 |
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| 作者姓名： | 李青海 秦忠诚 黄冬梅 蒋凌强 李鹏 |
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| 作者单位： | 1. 山东科技大学,资源与环境工程学院,山东,青岛,266510
2. 济宁矿业集团,运河煤矿,山东,济宁,272055 |
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| 摘 要： | 针对运河煤矿煤层的自然发火倾向,采用真空泵抽气法和埋设热电阻测定法对采空区气体成分进行测定,掌握了氧气浓度随工作面推进的变化规律.借助测定的氧浓度反推出了采空区漏风强度变化规律.根据获得的氧气浓度、漏风强度变化曲线,利用"三带"划分的极限值法对运河煤矿采空区进行了"三带"划分,并根据工作面实际推进速度确定出自然发火区域为采空区进风侧大于78m的范围.
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| 关 键 词： | 综放面 采空区 自然发火 氧气浓度 漏风强度 三带 |
The Division of Spontaneous Combustion Dangerous Region in Goaf of Fully-mechanized Lower Caving Face of No.1304 in Yunhe Coal Mine |
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| LI Qing-hai,QIN Zhong-cheng,HUANG Dong-mei,JIANG Ling-qiang,LI Peng. The Division of Spontaneous Combustion Dangerous Region in Goaf of Fully-mechanized Lower Caving Face of No.1304 in Yunhe Coal Mine[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 2009, 28(3): 28-33 |
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| Authors: | LI Qing-hai QIN Zhong-cheng HUANG Dong-mei JIANG Ling-qiang LI Peng |
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| Affiliation: | 1.College of Resources and Environmental Eng.;SUST;Qingdao;Shandong 266510;China;2.Yunhe Mine;Jining Mining Group;Jining;Shandong 272055;China |
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| Abstract: | In view of the coal bed spontaneous combustion tendency in Yunhe Coal Mine,this paper used vacuum pumping method and heating resistance buried testing method to determine gas compositions in goaf,mastered the rule of oxygen concentration with the face advance.The rule of air leakage intensity was reversely derived by means of the oxygen concentration distribution measured in goaf.Based on oxygen concentration and air leakage intensity curves,this paper carried on the division of three zones for the goaf of ... |
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| Keywords: | face goaf spontaneous combustion oxygen concentration air leakage intensity three zones |
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