Hydraulic end die of tunnel secondary lining trolley and construction method therefor

A hydraulic end die of a tunnel secondary lining trolley, comprising:

• a trolley side die-end die assembly and a trolley top die-end die assembly,
• wherein the trolley side die-end die assembly is fixed at an outer ring of a trolley side die assembly by means of a trolley side die-end die fixing device, the trolley top die-end die assembly is fixed at an outer ring of a trolley top die assembly by means of a trolley top die-end die fixing device, and the trolley side die-end die assembly and the trolley top die-end die assembly are connected with a hydraulic control system by means of a trolley side die-end die hydraulic telescopic device and a trolley top die-end die hydraulic telescopic device,
• wherein the trolley top die-end die assembly and the trolley side die-end die assembly are connected as a whole by means of a trolley end die connection device, and
• wherein the trolley end die connection device is a curved formwork having a same radius as that of the trolley, and comprises a 4 mm face plate and a 10 mm flange plate, and each of left and right flanges is provided with bolted connection holes, and are butt jointed with flange plates of the trolley top die-end die assembly and the trolley side die-end die assembly, respectively.