葛洲坝船闸水力学问题综合分析

对葛洲坝3座船闸在接近设计水头27m条件下运行中出现的水力学现象和原、模型观测资料进行综合分析。内容包括；船闸充泄水时上、下游引航道中的流速、流态、涌浪传播、间室充、泄水水力特性，阀门段水流空化及声振现象，阀门启闭力及阀门振动特性等。对船闸运行和检验中发现的问题及处理改善措施亦作了介绍，葛洲坝3座船闸运行了20a来的经验证明船闸按静水通航动水冲沙的原则指导设计是正确的，船闸输水系统布置型式是成功的。

On hydraulic issues of Gezhouba shiplocks

The hydraulic phenomena occurring in the operation of three Gezhouba shiplocks with their operation water head approching to the design water head of 27 m and the observed data from the prototype locks and their hydraulic models are comprehensively analysed. It includes: flow velocity,flow pattern, surge wave propagation in the upper and lower lock approaches in the cases of lock filling and emptying; hydraulic characteristics of lock filling and emptying; flow cavitation, noise and vibration phenomena in the gallery sections at filling and emptying valves; hoist loads on the valve hoisting machinery, viberation characteristics of the lock valves etc. Some problems discovered in the operation and maintenance of the locks and corresponding treatment and improvement measures are also presented in this paper.