| 大直径高位钻孔瓦斯抽放技术在特厚煤层矿区的应用 |
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| 引用本文： | 段会军,郝世俊,林来彬,赵永哲,郑玉柱,胡振阳,高宗飞.大直径高位钻孔瓦斯抽放技术在特厚煤层矿区的应用[J].探矿工程,2013,40(12):40-42,46. |
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| 作者姓名： | 段会军 郝世俊 林来彬 赵永哲 郑玉柱 胡振阳 高宗飞 |
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| 作者单位： | [1]中煤科工集团西安研究院,陕西西安710077 [2]陕西郭家河煤业有限公司,陕西宝鸡721500 |
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| 摘 要： | 针对郭家河煤矿1303工作面瓦斯涌出量大、上隅角及回风流瓦斯超限的问题，通过对高位钻孔瓦斯抽放原理及参数进行分析计算，并结合工作面生产情况，应用实践了常规高位钻孔及大直径高位钻孔瓦斯抽放技术。实践结果表明，大直径高位钻孔抽放效果远胜于常规高位钻孔，并有效地解决了瓦斯超限问题，改善了工作面的安全生产状况。
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| 关 键 词： | 大直径高位钻孔 瓦斯抽放 特厚煤层 |
| 收稿时间： | 2013/6/29 0:00:00 |
| 修稿时间： | 2013/6/29 0:00:00 |
Application of Gas Drainage Technology for High-position Borehole with Large Diameter in Extremely Thick Coal Seam Mining Area |
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| DUAN Hui-jun,HAO Shi-jun,LIN Lai-bin,ZHAO Yong-zhe,ZHENG Yun-zhu,HU-Zhen-yang and GAO Zong-fei.Application of Gas Drainage Technology for High-position Borehole with Large Diameter in Extremely Thick Coal Seam Mining Area[J].Exploration Engineering(Drilling & Tunneling),2013,40(12):40-42,46. |
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| Authors: | DUAN Hui-jun HAO Shi-jun LIN Lai-bin ZHAO Yong-zhe ZHENG Yun-zhu HU-Zhen-yang and GAO Zong-fei |
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| Institution: | 1. Xi＇ an Research Institute, China Coal Technology and Engineering Group Corp. , Xi＇ an Shaanxi 710077, China; 2. Shaanxi Guojiahe Coal Industry Co. , Ltd. , Baoji Shaanxi 721500, China) |
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| Abstract: | For the problems of high gas emission and gas transfinite in upper corner and return air from 1303 working face of Guojiahe mine, by the analysis and calculation of the principles and parameters of gas drainage for high-position borehole and combined with the production conditions of working face, the gas drainage technologies for conventional high-position borehole and high-position borehole with large diameter were performed in practice.The practical results show that the latter is much better than the former and effectively solves the problems of the gas transfinite and improves the safe production conditions of the working face. |
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| Keywords: | high-position borehole with large diameter gas drainage extremely thick coal seam |
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