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天坪铁路隧道瓦斯抽放防突技术
收稿日期: 2015-11-30
修回日期: 2015-12-24
网络出版日期: 2016-04-27
Study of Technologies for Gas Drainage and Outburst Prevention of Tianping Railway Tunnel
Received date: 2015-11-30
Revised date: 2015-12-24
Online published: 2016-04-27
李永生 , 杨立新 , 王栋 , 罗占夫 . 天坪铁路隧道瓦斯抽放防突技术[J]. 隧道建设, 2016 , 36(4) : 444 -450 . DOI: 10.3973/j.issn.1672-741X.2016.04.012
Tianping tunnel on ChongqingGuizhou Railway is a gas tunnel. As a result, gas drainage technology should be applied. The technology of meshshaped 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.
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