摘要
长大山岭隧道施工过程中不可避免地要通过断层破碎带等不良地质,在断层带地下水发育、导水性较好、补给充分的情况下,极易发生突泥涌水等地质灾害,会严重影响施工安全。文章对青云山隧道F9高压富水断层破碎带突涌水的特征及原因进行了综合分析,详细论述了穿越该断层所采用的超前地质预测预报、全断面超前预注浆、超前大管棚、加强型抗水压衬砌及全包防水等综合工程措施。施工中由于采取了这些工程措施,有效地控制了隧道施工造成的地下水流失,达到了预期效果,保证了施工安全。
It is unavoidable for long mountain tunnels to go through unfavorable geology, such as fractured rock and fault zones. Water inflow will likely occur if the area has well developed underground water, good hydraulic conductivity, and sufficient supply, which may seriously affect construction safety. A comprehensive analysis of the features and causes of gushing water at the Qing Yunshan tunnel located at the F high pressure water-rich fault zone was conducted. This paper discusses the comprehensive construction measures of advanced geological prediction, full face advanced pre-grouting, large pipe-roofs, strengthened water-resist linings, and wholly-covering water proofing systems, etc. These measures have efficiently controlled the loss of underground water caused by tunnel construction and have achieved their designed effect.
出处
《现代隧道技术》
EI
北大核心
2012年第5期123-127,131,共6页
Modern Tunnelling Technology
关键词
高压富水
断层破碎带
突涌水
工程措施
High pressure and rich water
Fractured fault zone
Water burst
Countermeasures
