Structure type of spillway discharge chute

The utility model discloses a spillway discharge chute structural form which comprises a spillway control section, the tail of the spillway control section is connected with a spillway discharge chute section, the spillway discharge chute section comprises two discharge chute side walls located on the outermost side, the head ends of the discharge chute side walls are connected with the tail of a side gate pier, and the tail of the side gate pier is connected with the tail of the spillway control section. Submerged weirs are arranged between the discharge chute side walls, the number of the submerged weirs is equal to that of the middle gate piers, the head ends of the submerged weirs are connected with the tails of the middle gate piers, the submerged weirs are lower than the discharge chute side walls, and the tail ends of the submerged weirs extend to the discharge chute structure transverse seam at the tail end of the spillway discharge chute section. The submerged weir is arranged behind the middle pier