Assembled channel type soilless roadbed

The invention discloses an assembled channel type soilless roadbed which is composed of a prefabricated inverted-U-shaped plate, a prefabricated connecting plate, a prefabricated foundation and a cast-in-place concrete leveling layer. Mounting grooves are formed in the prefabricated foundations, the ends of the prefabricated inverted-U-shaped plates are inserted into the mounting grooves, the prefabricated connecting plates are connected to the two adjacent prefabricated inverted-U-shaped plates in a lap joint mode, and cast-in-place concrete leveling layers are laid on the prefabricated inverted-U-shaped plates and the prefabricated connecting plates. The prefabricated connecting plate and the prefabricated inverted U-shaped plate are connected through steel pin grouting, so that rapid construction can be realized, and the manufacturing cost is reduced; the prefabricated connecting plate is simple and ingenious in structure, and the span is effectively expanded; the channel type roadbed structure does not ne