水利水电技术2017，Vol.48Issue(2)：67-73,7.DOI:10.13928/j.cnki.wrahe.2017.02.012
堵水注浆在引汉济渭工程岭南TBM施工段的应用研究
Study on application of water-blocking grouting to Lingnan TBM construction section of Hanjiang-to-Weihe River Valley Water Diversion Project
摘要
Abstract
The reverse slope construction is applied to Lingnan (South of Qinling mountains) TBM construction section of Hanjiang-to-Weihe River Valley Water Diversion Project,in which all the gushing water from the tunnel is discharged out with large power water pumps step by step.Under the impacts from the factors of the arrangement of the draining facilities,space of the tunnel,power supply,project investment,etc.as well as the objective conditions of the longer TBM excavation section and the construction adits,the interference and impact from the gushing water on the construction are quite large,especially the large concentrated gushing water can greatly threaten the safeties of workers and equipment therein.In order to ensure the construction safety and the smooth excavation of TBM,a construction principle of "mainly blacking and combining blocking with draining" is made for the treatment of the gushing water occurred in that construction section,for which a mode of combining the conventional dual-slurry water-blocking grouting with special material grouting is adopted for blocking the concentrated water gushing point.The result shows that the water-blocking groutings are carried out for 8 sections with large water gushing and concentrated gushing points,for which the actual blocked rates are over 99％,thus meet the blocking standard made beforehand.The method can provide a reference for TBM construction of the similar project.关键词
引汉济渭工程/岭南/涌水/堵水注浆/TBM施工Key words
Hanjiang-to-Weihe River Valley Water Diversion Project/south of Qinling Mountains/water gushing/water-blocking grouting/TBM construction分类
建筑与水利引用本文复制引用
蒋于波,赵伟,刘福生,邢阿龙..堵水注浆在引汉济渭工程岭南TBM施工段的应用研究[J].水利水电技术,2017,48(2):67-73,7.基金项目
国家重点研发计划项目(2016YFC0401805) （2016YFC0401805）
2013年陕西省科技统筹创新工程计划项目(2013KTZB-03-01-01) （2013KTZB-03-01-01）
