Research on Foundation Reinforcement Treatment Process for Shield Tunnel Entrance and Exit
In the process of shield construction,the entry and exit of the tunnel has always been an engineering problem.In this process,the stability of the soil at the portal and the safety of the surrounding buildings must be guaranteed.Taking a river bottom highway tunnel project as an example,this paper makes a detailed study on the foundation reinforcement treatment process of shield tunnel entrance and exit from two aspects of portal foundation reinforcement and shield entry.Finally,the construction effect is analyzed.The research results can provide reference for similar engineering.
foundation reinforcementgroove wallhigh pressure rotary jetcompaction groutingshield construction