不同级别船闸共用引航道的水流条件研究

Study on flow conditions of approach channel shared by different levels of ship locks

为研究不同级别船闸共用引航道的水流条件,以大源渡一、二线船闸为例,采用二维水流数学模型和物理模型试验相结合的方法,研究分析不同级别船闸共用上、下游引航道的水流流态、流速分布及船闸输水非恒定流特性。结果表明,大源渡一、二线不同级别船闸共用引航道布置方案是可行的,对于低概率工况出现的不利水流条件也有相应的改善措施。研究成果可为类似船闸工程提供借鉴。

In order to explore the flow conditions of the approach channel shared by different levels of ship locks,we take Dayuandu double ship locks as an example,and use the method of combining 2-D flow mathematical model and physical model test to analyze the flow pattern,velocity distribution and unsteady flow characteristics of ship locks when delivering water in the case of different levels of ship locks are sharing the upstream and downstream approach channels.The results show that the layout of the common approach channel of the first and second locks of Dayuandu is feasible.The improvement measures for unfavorable water flow conditions in low probability conditions are proposed.The results of this paper can provide reference for similar ship lock projects.