| 石门揭露突出煤层冻结温度场的实验研究 |
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| 引用本文： | 冯涛,谢雄刚,刘河清.石门揭露突出煤层冻结温度场的实验研究[J].煤炭学报,2011,36(11):1884-1889. |
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| 作者姓名： | 冯涛 谢雄刚 刘河清 |
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| 作者单位： | 湖南科技大学 煤矿安全开采技术湖南省重点实验室，湖南 湘潭 411201 |
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| 基金项目： | 国家自然科学基金资助项目(50674047); 湖南省高校科技创新团队支持计划资助项目 |
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| 摘 要： | 针对新提出的石门揭煤注液冻结防突方法,设计了室内水泥槽模型煤体冻结实验,分析了注液冻结后水泥槽中煤体温度、物理力学性能与冻结时间的关系。实验表明：槽中煤体形成以冻结管中心为圆心、半径为R沿径向随时间扩展的冻煤圆柱。槽中煤、瓦斯和水三相体最终变成坚硬冻结体,极大提高了其抗压强度和弹性模量等力学性能。实验论证了注液冻结石门...
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| 关 键 词： | 石门揭煤 冻结区 注液冻结 煤与瓦斯突出 |
| 收稿时间： | 2010-11-25 |
Experimental study of freezing temperature field in uncovering outburst coal seam in cross-cut |
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| FENG Tao,XIE Xiong-gang,LIU He-qing.Experimental study of freezing temperature field in uncovering outburst coal seam in cross-cut[J].Journal of China Coal Society,2011,36(11):1884-1889. |
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| Authors: | FENG Tao XIE Xiong-gang LIU He-qing |
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| Affiliation: | FENG Tao1,XIE Xiong-gang2,LIU He-qing1(1.Hunan Provincial Key Lab of Safe Mining Technology of Coal Mines,Hunan University of Science & Technology,Xiangtan 411201,China,2.Mining College,Guizhou University,Guiyang 550004,China) |
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| Abstract: | Aiming at a new-presented proof-outburst method by injecting liquid and freezing in uncovering coal seam in cross-cut,designed the coal freezing experimentation in cement trough model,analyzed the relation between the coal temperature,mechanical property and freezing time.Through the coal freezing experimentation in cement trough model,it shows that the freezing section,whose radius is R,is revolved around the freezing tube centre.The formed frozen coal column is patulous with the freezing time.The coal,gas... |
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| Keywords: | uncovering coal seam in cross-cut freezing area injecting liquid and freezing coal and gas outburst |
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