船闸引航道隔流墙物理模型试验优化研究

引航道通航水流条件是航运安全的关键，为研究不同形式隔流墙整流效果，依托浯溪枢纽二线船闸工程，建立定床物理模型通过测量表面流速分布评价船闸通航水流条件，系统地对比研究全实体形式隔流墙、实体与多型透空隔流墙组合、排桩整流等方案的整流效果，并提出排桩与桩基插板隔流墙组合方案。结果表明：延长隔流墙长度可以降低横、纵向流速，有效改善引航道水流条件；合理布置浮式隔流结构可以满足引航道水流条件，整流效果优于全实体隔流墙；排桩方案的整流效果较佳；排桩与桩基插板隔流墙组合方案综合浮式隔流结构、排桩整流技术的优势，在保障整流效果的同时降低了工程造价。

Optimization on physical model test of separation wall in ship lock approach channel

The navigable water flow conditions of the approach channel are crucial for shipping safety.To study the rectification effect of different types of separation walls,this paper relies on the Wuxi Hub second-line ship lock project to establish a fixed bed physical model.By measuring the surface flow velocity distribution,the navigational flow conditions of the ship lock is evaluated.The rectification effect of the full-solid separation wall,the combination of solid and multi-type permeable separation wall,and the row pile rectification and other schemes are systematically compared and studied.The combination scheme of row piles and pile foundation insertion plate separation wall is proposed.The results show that extending the length of separation wall can reduce the transverse and longitudinal flow velocity and improve the water flow conditions in the approach channel effectively.Reasonable arrangement of floating separation structure can meet the water flow conditions of the approach channel,and the rectification effect is better than that of full-solid separation wall.The rectification effect of pile row scheme is better.The combination scheme of pile row and pile inserted separation wall synthesizes the advantages of floating separation structure and pile row rectification technology,which can guarantee the rectification effect and reduce the project cost.