Early Warning and Stability Analysis of the Wuxizuo Tunnel Based on the Monitoring Data

Tunnel monitoring,being the core of New Austrian Tunneling Method,has become an essential factor in the construction of the tunnel.It provides accurate and timely basis for evaluating the feasibility of construction method,the rationality of design parameters and understanding of the actual level of surrounding rock and its deformation characteristics.In order to ensure the safety of the tunnel construction,the data of vault subsidence,peripheral convergence,and the surface subsidence were analyzed for the Wuxizuo shallow bias tunnel section,and timely warning of the hidden risk was proposed after that the reinforcement measure of the temporary inverted arch and encryption steel arch was taken timely to.secure the stability of surrounding rock and prevent the hidden danger of collapse.The result of analysis and treatment measures provide reference for similar projects.