• 中国科学引文数据库(CSCD)来源期刊
  • 中文核心期刊中文科技核心期刊
  • Scopus RCCSE中国核心学术期刊
  • 美国EBSCO数据库 俄罗斯《文摘杂志》
  • 《日本科学技术振兴机构数据库(中国)》
二维码

隧道建设(中英文) ›› 2016, Vol. 36 ›› Issue (4): 444-450.DOI: 10.3973/j.issn.1672-741X.2016.04.012

• 施工技术 • 上一篇    下一篇

天坪铁路隧道瓦斯抽放防突技术

李永生, 杨立新, 王栋, 罗占夫   

  1. (中铁隧道勘测设计研究院, 河南 洛阳 471009)
  • 收稿日期:2015-11-30 修回日期:2015-12-24 出版日期:2016-04-20 发布日期:2016-04-27
  • 作者简介:李永生(1976—),男,黑龙江五常人,1999年毕业于辽宁工程技术大学,安全工程专业,本科,高级工程师,现从事地下工程环境控制技术研究工作。Email: 375809983@qq.com。

Study of Technologies for Gas Drainage and Outburst Prevention of Tianping Railway Tunnel

LI Yongsheng, YANG Lixin, WANG Dong, LUO Zhanfu   

  1. (Survey, Design and Research Institute of China Railway Tunnel Group, Luoyang 471009, Henan, China)
  • Received:2015-11-30 Revised:2015-12-24 Online:2016-04-20 Published:2016-04-27

摘要:

渝黔铁路天坪隧道横洞工区为瓦斯突出工区,施工中为防治瓦斯突出必须进行瓦斯抽放,分析瓦斯抽放已有经验,确定了采用穿层网格预抽煤层瓦斯施工技术;结合隧道大断面及天坪隧道煤层赋存条件,确定了该技术的瓦斯抽放参数,在材料设备选型、钻孔布设、封孔施工、管路连接和瓦斯抽放监测等关键环节严格把关,并对抽放效果进行了检验。总结采用该项技术在经济、技术和安全生产等方面所取得的主要成果,以期为该项技术在类似隧道施工中的推广应用提供参考。

关键词: 天坪隧道, 瓦斯抽放与防突, 穿层网格, 监测

Abstract:

Tianping tunnel on ChongqingGuizhou Railway is a gas tunnel. As a result, gas drainage technology should be applied. The technology of meshshaped borehole drilling of coal layer is decided based on analyzing the gas drainage experience. The gas drainage parameters are decided based on studying the coal storage conditions. The material and equipment selection, layout of boreholes, borehole sealing, pipeline connection and gas drainage monitoring are strictly controlled; and the gas drainage effect is examined. Finally, the main achievements of the mentioned technologies are summarized in terms of economy, technology and safe construction.

Key words: Tianping Tunnel, gas drainage and outburst prevention, meshshaped borehole drilling of coal, monitoring

中图分类号: