Abstract:

No. 1 Dayaoshan tunnel on Wuhan～Guangzhou passengerdedicated railway is 10081m long. For the sake of construction schedule and future operation, an access adit with 888m length is installed at the intermediate point on the left of the tunnel alignment. Through the access adit, two more working faces are provided for the construction of the main tunnel. The equipment matching and highspeed construction technology (including blasting, excavation, muck loading and haulage, primary reinforcement and secondary lining) for the two mentioned working faces are presented in the paper, which can provide reference for the highspeed construction of similar works in the future.