EARTHY MATERIAL REMOVING CULVERT OF DRAINAGE GATE

摘要

PURPOSE: An earthy material removing culvert of a drainage gate is provided to eliminate the malfunction of an automatic gate caused by the deposits of a drainage way effectively with low expenses without earthy materials removing work or equipment. CONSTITUTION: An earthy material removing culvert comprises; a tubular culvert(1) installed to the bottom of a drain-outlet(a) and composed of a V-shaped downstream end(3) becoming longer toward the edge, and opened an upstream end(2) and the downstream ends; several auxiliary drain-outlets(8) divided by erecting a main partition(7) inside the culvert; several branched drain-outlets(10) formed by dividing the inside of the downstream end of the auxiliary drain-outlet by an auxiliary partition(9); an auxiliary flap gage(11) installed to the branched drain-outlets.