摘要
超前地质预报是保证隧道施工安全的重要手段。南渝高速公路铜锣山隧道穿越煤层采空区、巨型断层带,地质条件极为复杂,施工中极易发生煤与瓦斯突出、涌突水等地质灾害。隧道施工中引进了TRT6000超前地质预报三维空间反射层析成像技术,通过获取掌子面前方较长距离内的围岩及地下水赋存情况信息,为隧道施工安全提供预警,其预报成果对业主确定实施设计变更提供了科学依据。
The Tongluoshan tunnel on the Nanchong-Chongqing expressway passes through a coal goaf, and a large fault zone with complex geological conditions in which coal and gas outbursts and water inflow are likely to occur. Thus the TRT6000 geological prediction system using the 3-dimensional spatial reflection tomography technique was employed in the construction of the Tongluoshan tunnel to ensure the safety of tunnel construction. This system makes it possible to obtain information about underground water located far away from the working face and provides the technical support for the owner to make design alterations.
出处
《现代隧道技术》
EI
北大核心
2012年第5期137-141,150,共6页
Modern Tunnelling Technology
关键词
公路隧道
超前地质预报
煤层采空区
涌突水
Expressway tunnel
TRT6000 geological prediction system
Coal goaf
Water inflow
