Steel pipe and steel plate combined type tunnel supporting structure

The utility model discloses a steel pipe and steel plate combined type tunnel supporting structure, which belongs to the technical field of supporting structures and comprises a reinforcing mesh, a concrete spraying layer is fixedly connected to the surface of the reinforcing mesh, and a concrete reinforcing layer is fixedly connected to the inside of the concrete spraying layer. A waterproof layer is fixedly connected to the interior of the concrete reinforcing layer, an outer protection layer is fixedly connected to the interior of the waterproof layer, a concrete pouring layer is fixedly connected to the interior of the outer protection layer, and a high-strength steel pipe is fixedly connected to the inner wall of the concrete pouring layer. The reinforcing mesh can be fixed, the bearing capacity can be enhanced, safety is guaranteed, the tunnel can be protected by arranging the waterproof layer, damage to the tunnel caused by water corrosion is prevented, the environment in the tunnel is guaranteed, the