| 瓦斯抽放钻孔施工中的伯努利效应及预防建议 |
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| 引用本文： | 裴付龙,李晓伟,赵树行,王斌.瓦斯抽放钻孔施工中的伯努利效应及预防建议[J].中州煤炭,2011(9). |
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| 作者姓名： | 裴付龙 李晓伟 赵树行 王斌 |
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| 作者单位： | 河南神火煤业有限公司葛店矿; |
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| 摘 要： | 通过分析22031掘进工作面钻探过程中的瓦斯浓度在钻探不同阶段时的浓度变化,总结了钻进过程中瓦斯涌出的规律。在22031掘进工作面的试验表明:钻机刚开始施工时,巷道回风流内瓦斯浓度缓慢降低,当钻进一段时间后,瓦斯浓度缓慢升高,急停钻机,瓦斯浓度急速增长,进而超限。据此结论分阶段提出预防建议。
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| 关 键 词： | 钻探 瓦斯 突出预测 流体力学 伯努利效应 |
Bernoulli Effect in Gas Drainage Borehole Construction and Prevention Suggestions |
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| Pei Fulong,Li Xiaowei,Zhao Shuhang,Wang Bin.Bernoulli Effect in Gas Drainage Borehole Construction and Prevention Suggestions[J].Zhongzhou Coal,2011(9). |
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| Authors: | Pei Fulong Li Xiaowei Zhao Shuhang Wang Bin |
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| Affiliation: | Pei Fulong,Li Xiaowei,Zhao Shuhang,Wang Bin(Gedian Coal Mine,Henan Shenhuo Coal Industry Co.,Ltd.,Yongcheng 476600,China) |
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| Abstract: | By analysing changes of gas concentration in different drilling stages on 22031 driving face,the laws of gas emission in the drilling process was gained.The experiment on 22031 driving face has showed that in the very drilling beginning,gas density in the roadway reduces slowly;and in a few minutes,it increases slowly up,then shut down the drilling machines,it has a rapid growth,even overruns the limit.According to this,the author analyzed the reason for the gas density changes in the stages,and give sugges... |
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| Keywords: | drilling detection gas outburst danger prediction fluid mechanics bernoulli effect |
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