公路隧道穿越含瓦斯地层施工技术

随着我国公路建设的快速发展,在含瓦斯地层中修建隧道的可能性将不断增加。在施工中不能有效地治理瓦斯、防治瓦斯突出将对工程的进度、安全、质量及造价等方面造成严重的不良后果。着重介绍了公路隧道穿越含瓦斯地层时的几个关键性技术问题,为同类工程提供参考。

The Construction Technique of the Highway Tunnel Under-crossing the Gas Stratum

With the rapid development of domestic highway construction,the possibility of tunnel construction in the gas stratum is increasing. The effective gas control and gas outburst prevention will influence seriously the schedule,safety,quality and cost of the engineering. This paper introduces several key technological issues in the construction of highway tunnels under-crossing the gas stratum,which provides the reference for similar engineering.