铁道标准设计Issue(10)：86-88,89,4.DOI:10.13238/j.issn.1004-2954.2015.10.020
秦岭隧洞椒溪河段工程地质条件及涌水特征分析
The Analysis of Geological Conditions and Water Gushing in Jiaoxihe Section of Qinling Tunnel
摘要
Abstract
Water inrush is one of the main geological hazards in the construction of the tunnel. Qinling tunnel passes through Jiaoxi River where it is buried shallow in lithology dominated with marble, developed faults and rich water. Big water inrushing occurred three times when tunneling passed the river. To prevent disasters, advanced geological forecast was conducted ahead of construction and horizontal boreholes were drilled for verification. Additionally, pre-grouting was implemented with advanced horizontal drilling. Finally, multiple grouting, the combination of grouting in tunnel and retaining cofferdam and cutoff wall outside the tunnel were applied to minimize water gushing and to guarantee successful tunneling.关键词
秦岭隧洞/地质超前预报/涌水Key words
Qinling Tunnel/Advanced geological forecast/Water gushing分类
交通工程引用本文复制引用
李立民..秦岭隧洞椒溪河段工程地质条件及涌水特征分析[J].铁道标准设计,2015,(10):86-88,89,4.基金项目
陕西省科技统筹创新工程计划项目(2013KTZB03-01-01) （2013KTZB03-01-01）
