基于透空隔流堤布置的上游引航道通航水流条件优化  

Optimization of navigation flow conditions at upstream entrance of approach channel with separation levee

作　　者：邹永超 袁浩 冉彬君 胡亮亮 ZOU Yongchao;YUAN Hao;RAN Binjun;HU Liangliang(School of Transportation and Logistics Engineering,Wuhan University of Technology,Wuhan 430063,China;Southwest Water Transportation Engineering Research Institute,Chongqing Jiaotong University,Chongqing 400016,China;School of Shipping and Naval Architecture,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing Xike Water Transportation Engineering Consulting Co.,Ltd.,Chongqing 400016,China)

机构地区：[1]武汉理工大学交通与物流工程学院,湖北武汉430063 [2]重庆交通大学,西南水运工程科学研究所,重庆400016 [3]重庆交通大学航运与船舶工程学院,重庆400074 [4]重庆西科水运工程咨询有限公司,重庆400016

出　　处：《水运工程》2023年第6期96-101,共6页Port & Waterway Engineering

摘　　要：针对布置于急弯下游的水利枢纽上游引航道停泊段通航水流条件十分复杂的情况,依托某水利枢纽工程开展通航水力学模型试验,探究上游引航道停泊段外接隔流堤的作用,对比分析了不同透空隔流堤长度下停泊段的流场分布。结果表明,上游引航道停泊段外接透空隔流堤,可有效减小停泊段与河道主流间的流速梯度,改善停泊段通航水流条件。随着透空隔流堤长度的增大,停泊段最大纵向及横向流速呈减小趋势;同时,应综合考虑水流条件、工程造价等因素,合理设置隔流堤长度。The navigation flow conditions at the entrance of the approach channel affected by the upstream curve river course are very complex.In this paper,a navigation hydraulic model test is carried out based on a water conservancy project to explore the function of connecting the approach channel with a bottom-permeable separation levee,and the distribution characteristics of flow velocity at the entrance of the approach channel under different lengths of separation levee are compared and analyzed.The results show that the separation levee can effectively reduce the velocity gradient between the entrance of the approach channel and the river mainstream,and improve the navigation flow conditions.With the increase of the length of the separation levee,the maximum longitudinal velocity and transverse velocity at the entrance of the approach channel tend to decrease.The length of the bottom-permeable separation levee should be reasonably set by comprehensively considering the flow conditions,cost,and other factors.

关 键 词：上游引航道 流速分布 通航水流条件 隔流堤布置 

分 类 号：U61[交通运输工程—船舶及航道工程]