瓦斯突出隧道掘进工作面瓦斯涌出强度影响因素分析及控制措施研究

doi:10.3973/j.issn.1672-741X.2017.10.009

隧道建设（中英文） ›› 2017, Vol. 37 ›› Issue (10): 1262-1268.DOI: 10.3973/j.issn.1672-741X.2017.10.009

瓦斯突出隧道掘进工作面瓦斯涌出强度影响因素分析及控制措施研究

吴元金¹，杨立新¹，苟红松²

(1. 中铁隧道集团有限公司勘测设计研究院，广东广州 511455； 2. 中铁二院工程集团有限责任公司，四川成都 610031)

收稿日期:2017-06-14 修回日期:2017-08-31 出版日期:2017-10-20 发布日期:2017-10-26
作者简介:吴元金（1984—），男，江西玉山人，2007年毕业于太原理工大学，建筑环境与设备工程专业，本科，工程师，主要从事地下工程环境控制技术的研究工作。Email： 258334960@qq.com。

Analysis of Influencing Factors of Gas Outburst Intensity of Tunneling Face of Gas Tunnel and Its Control Methods

WU Yuanjin¹, YANG Lixin¹, GOU Hongsong²

(1. Survey,Design and Research Institute of China Railway Tunnel Group Co., Ltd., Guangzhou 511455,Guangdong, China； 2. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, Sichuan, China)

Received:2017-06-14 Revised:2017-08-31 Online:2017-10-20 Published:2017-10-26

摘要/Abstract

摘要：

为掌握和控制瓦斯涌出的危险性，结合煤层瓦斯流动理论，分析隧道掘进时瓦斯涌出的规律，提出瓦斯突出隧道瓦斯涌出强度的计算方法及控制措施，并指出瓦斯抽放是控制瓦斯突出隧道瓦斯涌出强度的重要措施。研究结果表明：采取合理有效的瓦斯涌出强度控制措施后，掘进工作面瓦斯涌出强度可以控制在0.5 m3/min以内，可以极大地提高瓦斯突出隧道的施工安全性。

关键词: 瓦斯突出隧道, 瓦斯涌出强度, 煤壁瓦斯涌出, 落煤瓦斯涌出, 瓦斯抽放

Abstract:

During the construction of gas outburst tunnel, the dynamics of gas outburst are often difficult to master and control; but it is the top priority of the safe construction of gas outburst tunnel. In this paper, the gas flow theory of coal seam is studied; the gas outburst rules of the tunnel are analyzed; the calculation methods and control methods for gas outburst intensity are proposed; meanwhile, it is pointed out that the gas drainage is the most important key to gas outburst intensity control. The study results show that the gas outburst intensity of tunneling face is effectively controlled within 0.5 m3/min and the construction safety of the gas outburst tunnel can be significantly improved by carrying out rational gas outburst control methods.

Key words: gas outburst tunnel, gas outburst intensity, gas outburst from coal wall, gas outburst from dropped coal, gas drainage

中图分类号:

U 458

吴元金，杨立新，苟红松. 瓦斯突出隧道掘进工作面瓦斯涌出强度影响因素分析及控制措施研究[J]. 隧道建设, 2017, 37(10): 1262-1268.

WU Yuanjin, YANG Lixin, GOU Hongsong. Analysis of Influencing Factors of Gas Outburst Intensity of Tunneling Face of Gas Tunnel and Its Control Methods[J]. Tunnel Construction, 2017, 37(10): 1262-1268.

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瓦斯突出隧道掘进工作面瓦斯涌出强度影响因素分析及控制措施研究

Analysis of Influencing Factors of Gas Outburst Intensity of Tunneling Face of Gas Tunnel and Its Control Methods

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