Yanyu High-speed Railway Key Project Tongbaiyuan No.2 Tunnel Successfully Completed

The key project Tongbaiyuan No. 2 tunnel of the Yanyu High-speed Railway, built by the Shaanxi Company of the West Chengdu-to-Xian Passenger Dedicated Line and jointly constructed by the China Railway 14th Bureau Group, was successfully connected recently. The completion of this tunnel marks that the cumulative excavation of the tunnels along the Yanyu High-speed Railway has exceeded 60%, and the construction progress bar has once again been refreshed.