Concrete lining shield tunnel without bracket steel plate and tunnel lining method

The invention relates to a concrete lining shield tunnel of a bracket-free steel plate and a tunnel lining method.The tunnel comprises a tunnel segment, a steel plate, concrete, two baffles, a first fastener and a second fastener, the steel plate with a groove in a reinforcing structure is fully utilized to be directly used as a pouring formwork, and the formwork is prevented from being erected and dismantled in the construction process; the steel plates are subjected to edge sealing through the baffles and connected with the ballast bed, steel corbels are avoided, and the strength and rigidity of the connecting position of the steel plates and the ballast bed are effectively improved; the advantages of high strength, high rigidity, good durability, strong interface cohesiveness, low permeability and good fire resistance of the concrete are fully utilized; compared with other shield tunnel structure reinforcing technologies, the method has the advantages that the whole-ring section and the local position are