It has culvert of pressure makeup of imports to be applicable to no gate

The utility model discloses an it has culvert of pressure makeup of imports to be applicable to no gate, including the imported top of culvert import top and the imported ground of culvert import below, import top perk setting gradually outside the culvert, the curve cross -section of perk formation is 14 elliptical curve structure, and culvert direction of approach is the semi major axis of this elliptical curve structure, and the length of this elliptical curve structure semi major axis is the twice of its semi -minor axis, and is highly the same in the length of semi major axis and the culvert, import ground divide into flat slope section, abrupt slope section and culvert bottom plate from the culvert is outer in proper order in the culvert, the flat slope section is higher than the culvert bottom plate. Compared with the prior art, the utility model discloses an it has culvert of pressure makeup of imports to be applicable to no gate reduces the head loss of culvert import, increases sluicing speed, and t