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三江航道二、三号船闸是葛洲坝枢纽一期工程。二号船闸有效尺度280×34×5米,三号船闸有效尺度 120×18×3.5米。两闸共走一条航道,上引航道直线段长 960米,弯曲半径1000米,宽180米,口门宽230米,最小水深4.5米;下引航道宽120米,口门宽150米,最小水深4.5米。二号船闸是目前国内最大的船闸,也是世界最大船闸之一,在
Sanjiang Waterway No. 2 and No. 3 ship lock is the first phase of Gezhouba Project. The effective size of No.2 lock is 280 × 34 × 5 meters and the effective size of No.3 lock is 120 × 18 × 3.5 meters. The two gates altogether have a fairway. The straight section of the approach channel is 960 meters in length with a radius of curvature of 1000 meters and a width of 180 meters. The width of the entrance is 230 meters and the minimum water depth is 4.5 meters. The width of the next navigation channel is 120 meters and the width of the entrance is 150 meters. 4.5 meters deep. The second ship lock is the largest ship lock in the world and one of the largest ship locks in the world