非饱和地层条件下盾构隧道帷幕防漏注浆技术  

TECHNOLOGY FOR LEAKAGE PREVENTION AND GROUTING OF SHIELD TUNNEL CURTAIN UNDER THE CONDITIONS OF UNSATURATED FORMATION

作　　者：杜兵权 DU Bing-quan(Tianjin Jinnan District,No.4 Engineering Co.,Ltd.,of China Railway 18th Bureau Group,300350,Tianjin,China)

机构地区：[1]中铁十八局集团第四工程有限公司,天津300350

出　　处：《建筑技术》2023年第1期105-109,共5页Architecture Technology

摘　　要：针对传统使用截住渗水源头和疏通排水沟管法受到涌水量影响,导致防漏效果不佳的问题,提出了非饱和地层条件下盾构隧道帷幕防漏注浆施工技术。试验结果表明,该技术表层涌水量最高为400 m^(3)/h、导管涌水量最高为4300 m^(3)/h、深孔涌水量最高为4000 m^(3)/h,随着时间增加,涌水量逐渐下降,最终达到防漏效果。The technology for leakage prevention and grouting of shield tunnel curtain under the conditions of unsaturated formation is proposed,aiming to solve the problem of poor leak-proof effect caused by water inflow impacting the use effects of traditional method including intercepting the source of seepage and dredging the drain pipe affected by the amount of water inflow.It can be gained from the test that the maximum water inflow of surface is 400m^(3)/h,conduit 4300m^(3)/h,and deep hole 4000m^(3)/h.The water inflow gradually declines as time passes,and finally leakage prevention can be realized.

关 键 词：非饱和地层 盾构隧道 帷幕防漏 注浆施工 

分 类 号：U453.61[建筑科学—桥梁与隧道工程]