Culvert mouth of corrugated steel pipe culvert

The invention discloses a culvert mouth of a corrugated steel pipe culvert. The culvert mouth comprises a main wall plate and side wall plates, wherein the main wall plate and the side wall plates are plane steel plates consisting of corrugated steel plates; reserved thread holes are formed in each plane steel plate; one ends of bar strips are connected with the main wall plate through the reserved thread holes; the other ends of the bar strips are straightened and anchored in compacted soil materials; the main wall plate is perpendicular to the cross section of a culvert body; an opening is formed in the main wall plate; the shape of the opening is matched with that of the culvert; the periphery of the opening is connected with the edge of the culvert wall of the culvert through a flange; each of two outer sides of the main wall plate is connected with one side of the corresponding side wall plate. The culvert mouth of the corrugated steel pipe culvert, disclosed by the invention, solves the problems of cracking, infirm connection, poor beauty degree and the like, caused by the uneven sedimentation of a culvert mouth in a masonry structure and a culvert pipe body; besides, the culvert mouth can be produced in a centralized manner in a factory, and the construction is rapid and convenient.