摘要
Abstract
Water gushed out suddenly when the Zhongtianshan Tunnel on Turpan-Korla Line 2 of Southern Xinjiang Railway was being constructed,with the water pressure as high as 6.3Mpa.Because of this,the geology and the hydrogeology characteristics were analyzed by means of geological forecast,and water amount observing method and hydraulic connectivity test.And then,by combining the scheme research result with field test result,the countermeasure principle against the water gushing was put forward as below:position confirmation by regionalizing,outflow reduction by grouting,pressure reduction by water releasing,and support interval by reasonable layout.As a result,this countermeasure principle has enabled the tunnel to pass through the high-pressured and water-rich area successfully,ensuring the safety of construction.关键词
铁路隧道/高压富水带/涌水/分区定位/注浆减排/泄水降压Key words
railway tunnel/ high-pressured and water-rich area/ water gushing/ position confirmation by regionalizing/ outflow reduction by grouting/ pressure reduction by water releasing分类
交通工程
