大直径高位钻孔瓦斯抽放技术在特厚煤层矿区的应用
投稿时间：2013-06-29  修订日期：2013-06-29  点此下载全文
引用本文：段会军,郝世俊,林来彬,等.大直径高位钻孔瓦斯抽放技术在特厚煤层矿区的应用[J].钻探工程,2013,40(12):40-42,46.
DUAN Hui-jun,HAO Shi-jun,LIN Lai-bin,et al. Application of Gas Drainage Technology for High-position Borehole with Large Diameter in Extremely Thick Coal Seam Mining Area[J]. Drilling Engineering, 2013,40(12):40-42,46.
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作者单位E-mail
段会军* 中煤科工集团西安研究院 458610027@qq.com 
郝世俊 中煤科工集团西安研究院 1@1.com 
林来彬 陕西郭家河煤业有限公司 1@1.com 
赵永哲 中煤科工集团西安研究院 1@1.com 
郑玉柱 中煤科工集团西安研究院 1@1.com 
胡振阳 中煤科工集团西安研究院 1@1.com 
高宗飞 陕西郭家河煤业有限公司 1@1.com 
中文摘要: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。
中文关键词:大直径高位钻孔  瓦斯抽放  特厚煤层
 
Application of Gas Drainage Technology for High-position Borehole with Large Diameter in Extremely Thick Coal Seam Mining Area
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.
keywords:high-position borehole with large diameter  gas drainage  extremely thick coal seam
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