强潮河口船闸口门区建挡潮闸水流条件及回淤分析  

Analysis of Navigation Flow Conditions and Siltation in the Entrance Area of Ship Lock with Tidal Gate in the Strong Tidal Estuary

作　　者：王丰来 孔增增 杨元平 郑国诞 WANG Feng-lai;KONG Zeng-zeng;YANG Yuan-ping;ZHENG Guo-dan(Hangzhou Grand Canal Second Channel Construction&Investment Co.,Ltd.,Hangzhou 310019,China;Hangzhou Transportation Investment&Construction Engineering Co.,Ltd.,Hangzhou 310012,China;Zhejiang Institute of Hydraulics&Estuary(Zhejiang Institute of Marine Planning and Design),Hangzhou 310020,China)

机构地区：[1]杭州京杭运河二通道建设投资有限公司,浙江杭州310019 [2]杭州交投建设工程有限公司,浙江杭州310012 [3]浙江省水利河口研究院(浙江省海洋规划设计研究院),浙江杭州310020

出　　处：《水电能源科学》2024年第11期83-86,共4页Water Resources and Power

基　　金：浙江省交通厅科技计划项目(2021026);浙江省自然科学基金项目(LY22E090007);浙江省水利厅科技计划项目(RC2020)。

摘　　要：联通河口与内河的河口区船闸,由于闸下引航道与主流夹角较大,出口区横向流速大,口门区淤积严重。对此,采用数学模型对八堡船闸出口建设方案典型大潮条件下口门区的流场进行计算,各方案可通航时间主要受纵向流速控制,不建闸可通航时间最长,其次为双闸方案,单闸较双闸略差。采用回流淤积公式对引航道区的淤积进行计算,由于建挡潮闸后其回流尺度、回流流速也有所降低,有利于船舶安全通行,与不建闸相比,建单闸回流淤积减少最大,建双闸减少略小。研究成果可作为工程设计及决策依据。The ship lock connecting the estuary and inland rivers has a large angle between the downstream approach channel and the mainstream,resulting in a high lateral flow velocity in the outlet area and severe siltation in the entrance area.The mathematical model was used to calculate the flow field in the mouth area of the Babao Shiplock under typical tide conditions.The navigable time of each scheme was mainly controlled by the longitudinal flow velocity,with the lon-gest navigable time without the construction of gates,followed by the double gate scheme,third for a single gate.The back-flow sedimentation formula was used to calculate the sedimentation in the approach channel area.The scale and flow velocity of the backflow have decreased with tidal gates,which benefit for the safe passage of ships.Compared with none-construction of gate,the backflow sedimentation of single gate was reduced the most,while double gate was slightly smaller.The research results can serve as a basis for engineering design decision-making.

关 键 词：钱塘江河口 船闸 通航水流条件 口门区淤积 

分 类 号：TV148.1[水利工程—水力学及河流动力学] U617[交通运输工程—船舶及航道工程]