沧江水利枢纽船闸通航水流条件优化试验研究

Experimental Study on Optimization of Navigation Flow Conditions for Ship Locks of Cangjiang Hydro-project

建于弯曲河道的船闸,其通航水流条件往往受河势、弯道水流等不利影响,不能满足规范要求。通过船闸工程水工模型试验,研究了沧江水利枢纽船闸引航道口门区的水流流态情况,针对存在的引航道口门区不良流态问题,结合河道河势、主槽分布特点,提出河道清淤、延长导航墙、限制最大通航流量的优化组合措施,较好的改善了船闸的通航水流条件,提高了通航安全性。相关研究成果已应用于工程建设并取得成效,可供类似工程的设计和建设参考。

The flow conditions of ship locks built on curved river channels are often affected by several negative factors,including river regime and curved channel flow,and cannot meet the requirements of regulations.Through physical experiments,the flow pattern of the entrance area of the ship lock approach channel of Cangjiang Hyro-project was studied.In response to the problem of poor flow pattern in the entrance area of the navigation channel,based on the characteristics of the river channel and the main channel distribution,a combined measures including dredging,extending the navigation wall,and limiting the maximum navigation flow were proposed,which effectively improved the navigation flow conditions of the ship lock and improved navigation safety.The relevant research results have been applied to engineering construction and have achieved good results,providing reference for the design and construction of similar projects.