复杂隧道煤层瓦斯探测与施工技术

Detection and Construction Technology of Gas in Coal Stratum of Complex Tunnel

结合沪昆客专贵州段斗磨隧道平导煤层施工工程实例,提出了隧道施工煤层瓦斯段探测及施工方法,并详细介绍了该方法操作要点,判定依据和参数,实践中该方法准确判定煤层位置,瓦斯情况,为瓦斯隧道施工提供了充分的地质依据,对确定开发支护方案起到至关重要的作用,保证瓦斯隧道安全施工,对类似工程具有一定的借鉴作用。

Combined with the engineering example of Doumo tunnel horizontal guide coal stratum construction of Shanghai- Kunming Passenger Dedicated Line in Guizhou Province, this paper proposes the detection and construction method of gas in tunnel coal stratum and introduces the key operating points of this method in details to determine the basis and parameters. In practice, the method can be applied to accurately determine the coal stratum position and gas situation to provide sufficient geological basis for gas tunnel construction, thus playing a crucial role in determining the development of support programs, ensuring the safety of the gas tunnel construction and proving some references for similar engineering.