Tunnel secondary lining integral type steel end mold device and construction method

The invention relates to the technical field of tunnel construction, in particular to a tunnel secondary lining integral type steel end mold device which comprises secondary lining trolley arc plates, a trolley, hydraulic oil cylinders, a wheel rail and a hydraulic pump station, the trolley is located on the wheel rail, the hydraulic oil cylinders are arranged between the secondary lining trolley arc plates, and the hydraulic oil cylinders are connected with the hydraulic pump station. Reinforcing ribs are evenly arranged on the integral steel panel, a plurality of bolt holes are evenly distributed in the integral steel panel and the secondary lining trolley arc plate, fixed bolts are correspondingly arranged in the bolt holes and connected with steel sliding grooves, and the integral steel panel is hinged to the telescopic end of the hydraulic telescopic oil cylinder through a hinge bolt. A wheel rail cleaning mechanism for cleaning wheel rails is arranged at the bottom of the trolley; according to the tunne