特长深埋TBM施工隧洞反坡排水施工技术

Counter-slope drainage construction technology of super long deep buried TBM construction tunnel

陕西省引汉济渭工程是陕西省省内跨流域调水工程。是针对关中地区缺水问题提出的陕西省内南水北调工程的骨干线路。工程秦岭隧洞‘TBM施工段岭南工程存在地下突涌水多、独头排水距离长、反坡排水等问题。本文着重介绍了陕西省引汉济渭工程秦岭隧洞。TBM施工段岭南工程反坡排水分级水仓、逐级抽排的施工方法,为类似TBM施工工程提供参考。

Shaanxi Hanjiang-to-Weihe River Water Diversian Project is an inter-basin water transfer project in Shaanxi Province.It is a backbone line of South-to-North Water Diversian Project in Shaanxi Province,which is proposed aiming at water deficiency problem in the Guanzhong area of Shaanxi Province.Lingnan Project in Qinling tunnel TBM construction section has the problems of excessive underground sudden floods,long single-head drainage distance and counter-slope drainage,etc.In the paper,the counter-slope drainage classified water warehouse and stage-by-stage drainage construction methods of Qinling tunnel TBM construction section Lingnan Project in Shaanxi Hanjiang-to-Weihe River Diversion Project are introduced emphatically,thereby providing reference for similar TBM construction projects.