Stability Analysis of the Lining Reinforcement Structure of a Double-Track Heavy-Haul Railway Tunnel

An increasing number of railway tunnels are afflicted with tunnel lining diseases. Through on-site detection diseases in double-track tunnels, this paper analyzed its causative factors and developed a section steel arch frame reinforcement. simulation mechanical performance, both the plate concrete met tensile strength code requirements for design (TB 10003-2016). It effectively repaired damage from under narrow-site short maintenance “window” time conditions without affecting normal operation catenary power supply facilities. This reinforcement has great practical significance broad application prospects.