Deformation Control Measures of Bias Tunnel Based on Numerical Simulation Technology

With the continuous advancement of tunnel engineering, tunnel engineering under complex geological conditions is gradually increasing, and the deformation control of bias tunnel has gradually attracted wide attention. In this article, the creep subroutine of wall rock is compiled based on FORTRAN language, and ABAQUS is used to call the subroutine to analyze the bias tunnel model. Based on the analysis of the initial support scheme, the grouting support technology of tunnel wall rock is put forward. The results indicate that the improved grouting support technology transfers the plastic zone of the initial lining and the subsequent lining of the tunnel to the grouting zone, and the axial force and bending moment of the initial lining and the subsequent lining of the tunnel are reduced. The research results provide reference and guidance for the deformation control of bias tunnel.