| 顶板周期来压与采场瓦斯涌出的关系研究 |
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| 引用本文： | 蔡建德,李战军,李化敏.顶板周期来压与采场瓦斯涌出的关系研究[J].矿冶工程,2009,29(2):12-15. |
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| 作者姓名： | 蔡建德 李战军 李化敏 |
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| 作者单位： | 1.广东宏大爆破股份有限公司, 广东 广州 510623;
2.河南理工大学 能源学院, 河南 焦作 454003 |
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| 摘 要： | 通过现场监测研究了顶板周期来压与采场瓦斯涌出变化之间的关系, 并对工作面超前支承压力变化和采空区老顶垮落对瓦斯流动的影响进行了分析。结果表明, 支承压力变化影响煤壁瓦斯的涌出, 采空区内瓦斯的分布与距工作面距离有关, 周期来压时采场瓦斯涌出量的增大是工作面超前支承压力变化和采空区老顶垮落共同作用的结果。
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| 关 键 词： | 瓦斯 采空区 顶板周期来压 |
| 收稿时间： | 2008-12-06 |
Relationship between Periodic Roof Weighting and Gas Emission from Stopping Area |
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| CAI Jian-de,LI Zhan-jun,LI Hua-min.Relationship between Periodic Roof Weighting and Gas Emission from Stopping Area[J].Mining and Metallurgical Engineering,2009,29(2):12-15. |
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| Authors: | CAI Jian-de LI Zhan-jun LI Hua-min |
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| Affiliation: | 1.Guangdong Hongda Blasting Co Ltd, Guangzhou 510063, Guangdong, China;
2.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China |
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| Abstract: | The relationship between periodic roof weighting and gas emission from stopping area was studied by monitoring on site.The change in front abutment pressure on the working face and impact of roof caving in gob on gas flow from stopping area have been analyzed.Results show that the change in the support pressure has an impact on the gas emission from walls and there's a relationship between gas distribution in gob and the distance away from working face.And it is found that an increase in the gas emission from stopping area during periodic weighting is the result from the change in both front abutment pressure and roof caving in gob. |
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| Keywords: | gas gob periodic roof weighting |
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