瓦斯隧道防突防爆施工技术研究

Research on Construction Technology of Outburst and Explosion Prevention of Gas Tunnel

以沪昆客专贵州段林家屋基隧道进口段高瓦斯段施工为例,通过介绍该地区的地质情况、煤层分布、煤系说明、地勘、揭煤方案、防突效果检验、通风方案、含煤地段掘进、瓦斯排放系统、隧道施工防火、施工方法等,论文总结了高瓦斯隧道的施工经验,对施工过程中的关键项目控制点进行分析,并制定有效管控措施,以加快瓦斯隧道施工进度,确保施工安全。

Taking the construction of the high gas section in the entrance section of Linjiawuji Tunnel in Guizhou section of Hukun high-speed railway as an example,through the introduction of the region geology,coal seam distribution,coal system,geological exploration,coal stripping scheme,anti-outburst effect inspection,ventilation scheme,coal section excavation,gas discharge system,tunnel construction fire prevention,construction method etc.,the paper ssummarizes the construction experience ofhigh gas tunnel,analyzes thekey project control points in the construction process,and formulates effective control measures to speed up the construction progress of gas tunnel and ensure the constructionsafety.