河北水利电力学院学报2025，Vol.35Issue(2)：49-54,6.DOI:10.16046/j.cnki.issn2096-5680.2025.02.009
富水破碎带输水隧洞超前帷幕预注浆技术研究
Research on Advanced Curtain Pre Grouting Technology for Water Conveyance Tunnels in the Rich Water Fractured Zone
摘要
Abstract
The construction of the water rich and fractured zone in the water conveyance tunnel can easily lead to excessive deformation of the tunnel surrounding rock,mud and water inrush,and instability of the working face,seriously affecting the safety of the water conveyance tunnel construction.Therefore,this article relies on the Yinchuo Jiliao Water Diversion Tunnel crossing the rich water fractured zone pro-ject,and uses the TSP advanced geological prediction method to understand the characteristics of the sur-rounding rock in front of Zhangzi,which is relatively fractured,with poor integrity and strong water rich-ness.In response to the unfavorable geological situation,a three-dimensional water conveyance tunnel model was established using finite element software.The vertical displacement of the tunnel arch crown,horizontal displacement of the arch waist,and uplift displacement of the arch bottom were compared under three working conditions:non grouting reinforcement,half section curtain grouting,and full section cur-tain grouting.The suitable reinforcement scheme and technical indicators of full section curtain grouting for this project were determined.Further combining the drilling inspection method,P-Q-t curve method,and excavation sampling method,the reinforcement effect of the full section advanced curtain grouting scheme adopted was evaluated.The research methods and conclusions of this article can provide reference for similar projects.关键词
富水破碎带/输水隧洞/超前帷幕预注浆/有限元分析/加固效果Key words
rich water fractured zone/water conveyance tunnel/advance curtain pre grouting/finite element analysis/reinforcement effect分类
交通工程引用本文复制引用
常宝玉..富水破碎带输水隧洞超前帷幕预注浆技术研究[J].河北水利电力学院学报,2025,35(2):49-54,6.基金项目
四川省青年科学基金项目(2022NSFSC1117,2022NSFSC1086) （2022NSFSC1117,2022NSFSC1086）
