涡阳船闸改建工程下引航道通航水流条件研究  

Study on Navigable Flow Conditions of the Lower Approach Channel of Guoyang Shiplock Reconstruction Project

作　　者：刘志庆 LIU Zhiqing(Anhui Modern Transportation Design and Research Institute Co.,Ltd.,Hefei 230601,China)

机构地区：[1]安徽省现代交通设计研究院有限责任公司,合肥230601

出　　处：《广东水利水电》2024年第7期18-23,共6页Guangdong Water Resources and Hydropower

摘　　要：针对涡阳船闸南岸建设方案建立二维水流数学模型和物理模型,分析验证下引航道通航水流条件。结果表明:①原枢纽布置方案下游存在急弯河段,水流偏转急,口门区存在斜流,水流横向流速较大,不利于通航;②采用调整航线、切滩以及河道疏浚的优化工程措施,可有效改善下引航道的通航条件。推荐方案各工况的横向流速、纵向流速和回流流速均满足规范要求,有效改善了回流与横流现象,可为后期船闸方案设计提供参考和依据,也可为其他类似船闸改善通航水流条件提供参考借鉴。Based on the construction scheme of the south bank of Guoyang County shiplock,a two-dimensional flow mathematical model and a physical model are established to analyze and validate the navigable flow conditions in the lower approach channel.The results show that:①there are sharp bends in the lower reaches of the project,the flow deflects sharply,there is oblique flow in the entrance area,and the lateral velocity of the flow is large,which is not conducive to navigation;②the navigation conditions of the lower approach channel can be effectively improved by adopting the optimal engineering measures of adjusting the route,cutting the shoal and dredging the channel.The transverse velocity,longitudinal velocity and backflow velocity of the recommended scheme meet the requirements of the code,and effectively improve the backflow and crossflow phenomena.It can provide reference and basis for the design of later shiplock scheme,and provide reference for other similar shiplock to improve navigation flow condition.

关 键 词：下引航道 口门区 数学模型 通航水流条件 切滩 疏浚 

分 类 号：U641[交通运输工程—船舶及航道工程]