Assembly type pipe segment structure of top pipe

The utility model discloses an assembly type pipe segment structure of a top pipe. The structure is characterized in that pre-embedded steel plates used for connection are arranged in a pipe segment, and a preset grouting device is arranged in the pipe segment, and a grout outlet of the preset grouting device is located on an assembling surface of the pipe segment. The assembly type pipe segment structure of the top pipe has the advantages that (1) the pipe segment can be integrated through the effective connection of the pre-embedded steel plates on the inner cambered surface and the outer cambered surface of the pipe segment, and top pipe pipeline construction requirements and force-bearing and deformation requirements during the usage stage are satisfied; (2) by adopting pressure grouting to fill gaps between pipe segments through the preset grouting device, the problems of water penetration and water leakage at pipe segment seams are solved; (3) the inner side and the outer side of a pipe are coated with epoxy anticorrosive paint, so that the durability of the pipe is improved; (4) by means of the connecting mode, large-diameter pipe segments of the top pipe can be transported in segments, and the problem of transportation difficulty of the top pipe is solved.