Transportation method and transportation structure for shield tunnel construction

The invention relates to the technical field of tunnel construction, in particular to a transport structure for shield tunnel construction, which comprises a transport vehicle, a groove is formed in the top of the transport vehicle, a limiting mechanism is arranged in the groove, two supporting pieces are mounted at the top of the transport vehicle close to the groove, rollers are mounted at the bottom of the transport vehicle, and an auxiliary braking mechanism is arranged at the bottom of the transport vehicle. The auxiliary braking mechanism comprises two moving rods, rotating rods are installed at the two ends of the two moving rods, braking blocks are arranged at the ends of the rotating rods, and a driving mechanism is installed in the middle of the bottom of the transport vehicle. According to the device, when the transport vehicle advances to the track with the large gradient, if a vehicle sliding accident occurs, a motor can be started to drive two moving rods to move in the direction away from each