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在通航建筑物中,以单级船闸最为普遍,其输水型式又以闸室底部分散输水较为复杂。由交通部水运规划设计院和长江流域规划办公室共同负责设计的葛洲坝三江二号船闸是一座大型高水头船闸,输水系统采用底部分散型式。南京水利科学研究所和天津水运工程研究所等单位先后承担了船闸和阀门的水工模型试验任务。笔者曾有机会参加了有关的设计或试验工作。
In the navigation structure, a single-stage ship lock is the most common, and its water delivery type is dispersed at the bottom of the sluice chamber. The Gezhouba Sanjiang II ship lock, jointly designed by the Ministry of Transport, Water Transport Planning and Design Institute and the Yangtze River Basin Planning Office, is a large, high-head ship lock with a decentralized bottom distribution system. Nanjing Institute of Water Conservancy and Tianjin Institute of Water Transport Engineering and other units have assumed the ship lock and valve hydraulic model test mission. I had the opportunity to participate in the design or test work.