Assembled ballastless track structure and longitudinal connecting structure thereof

The invention discloses a longitudinal connecting structure of an assembled sleeper slab-type or a track slab-type ballastless track structure and a ballastless track structure including the longitudinal connecting structure. Two embedded longitudinal steel bars are longitudinally connected through an extrusion sleeve, the butting ends of the two longitudinal steel bars are separately inserted into the two ends of the extrusion sleeve, and the extrusion sleeve deforms and is locked under the extrusion of a portable extruder. According to the longitudinal connecting structure of the assembled sleeper slab-type or the track slab-type ballastless track structure and the ballastless track structure including the longitudinal connecting structure, the accuracy during site laying construction can be improved, disassembly and installation are convenient, the construction difficulty is reduced, the speed of site construction is increased, the structure is simple, and positioning of a sleeper slab or a track slab is c