Temporary prefabricated ditch assembly for highway reconstruction and extension project

According to the temporary prefabricated ditch assembly for the highway reconstruction and extension project, when the temporary prefabricated ditch assembly is assembled, the front side face of the left side wall of the rear ditch unit abuts against the rear side face of the left side wall of the front ditch unit, and the front side face of the right side wall of the rear ditch unit abuts against the rear side face of the right side wall of the front ditch unit; the front side face of the bottom wall of the rear ditch unit abuts against the rear side face of the bottom wall of the front ditch unit, the inserting piece of the rear ditch unit is inserted into the inserting hole of the front ditch unit, and the left front socket rod and the right front socket rod are vertically inserted into the second left socket hole and the second right socket hole of the front ditch unit correspondingly. And the left rear socket rod and the right rear socket rod are vertically inserted into the first left socket hole and th