水利水电技术2017，Vol.48Issue(8)：131-136,6.DOI:10.13928/j.cnki.wrahe.2017.08.025
三维地震波法超前地质预报在引汉济渭工程TBM施工中的应用
Application of 3-D seismic wave advanced geological forecast to TBM construction of Hanjiang-to-Weihe River Valley Water Diversion Project
摘要
Abstract
As crossing the base of Qinling Mountain,the engineering geological condition for Qinling Tunnel is quite complicated and variable with the prominent characteristics of large buried depth,high stress,high water pressure,large flow rate,etc.,for which several special geological problems such as large collapse,ruck burst,sudden water burst,large deformation of soft rock under large buried depth,etc.are to be encountered during the construction,thus it is quite important to accurately forecast the poor geological bodies in front of the working face and adopt effective prevention and control countermeasures to ensure the smooth implementation of the project and the safeties of both the construction workers and equipment.Under the limitation factors of TBM,i.e.narrow space,well-equipped instruments,eletromagnetic interference,etc.,the conventional method of the advanced geological forecast cannot be adaptable for the geological forecast in its construction section,and then the 3-D seismic wave method is introduced in the construction of the tunnel for Hanjiang-to-Weihe River Valley Water Diversion Project for two times of exploration and experiment.The study result shows that the 3-D seismic wave method has a better positively correlated response for the forecast of the poor geological bodies in front of the working face of the tunnel,and then is one of the efficient means suitable for the advance geological forecast for TBM construction.During the tunneling of the TBM construction section of the North Qinling Mountain for Qinling Tunnel of Hanjiang-to-Weihe River Valley Water Diversion Project,the technology provides the geological information ahead of the working face and the dynamic evaluation of the surrounding rock quality,especially provides the accurate advanced geological information for making the jam-releasing solution for the TBM jammed at the location of K51 +597.6 in time,thus has certain reference value for the advanced geological forecast of TBM construction section.关键词
秦岭隧洞/引汉济渭工程/TBM/三维地震波法/超前地质预报Key words
Qinling Tunnel/Hanjiang-to-Weihe River Valley Water Diversion Project/tunnel boring machine/3-D seismic wave method/advanced geological forecast分类
交通工程引用本文复制引用
李玉波..三维地震波法超前地质预报在引汉济渭工程TBM施工中的应用[J].水利水电技术,2017,48(8):131-136,6.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）
陕西省引汉济渭工程建设有限公司科研项目(引汉建函[2014]93号) （引汉建函[2014]93号）
