鄱阳湖水利枢纽航道通航水流条件及优化措施试验研究  

Experimental study on navigable flow condition and optimization measures of navigation channel of Poyang Lake water control project

作　　者：唐立模[1] 房新宇 林青炜 陆阿坤 屈一晗 TANG Limo;FANG Xinyu;LIN Qingwei;LU Akun;QU Yihan(College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《水运工程》2023年第11期99-105,共7页Port & Waterway Engineering

基　　金：江西省水利厅科技项目(202325ZDKT04)。

摘　　要：针对鄱阳湖水利枢纽通航水流条件是否满足通航安全要求展开研究,建立鄱阳湖入江水道星子—湖山段物理模型,对鄱阳湖水利枢纽一期围堰阶段现状航道、二期围堰及运营期设计航道各典型工况下的通航水流条件进行试验研究。首先通过物理模型试验验证航道内是否产生不良流态;其次针对航道内出现的不良流态提出相应优化措施并进行方案比选;最后对优化后航道内通航水流条件进行试验验证以确保船舶安全通航。模型试验主要结论:二期围堰及运营期设计航道在大流量工况下存在上游口门区横向流速超标及下游锚地段生成大尺度回流等问题。通过实施调整上游隔流堤形式,航道右侧浅滩开挖,下游锚地段下移等措施后,设计航道各工况下水流条件均满足通航安全要求。A physical model of Xingzi-Hushan section of the North Lake of Poyang Lake is established,to study whether the navigable flow condition of Poyang Lake Water Control Project meets the navigable safety,including the experimental study on navigable flow condition of the current channel of the first stage cofferdam,the design channel of the second stage cofferdam and the operation period of Poyang Lake water control project under different conditions.Firstly,physical model tests are conducted to verify whether there are bad flow patterns in the channel.Secondly,the corresponding optimization measures are studied for the bad flow patterns.Finally,the navigable flow condition in the optimized channel is tested to ensure the safe navigation.The conclusions are as follows:The navigable flow condition of the design channel of the second cofferdam and the the operation period has some problems under the condition of large flow rate,such as the transverse velocity of the upstream entrance area exceeds the limit and large scale backflow is generated in the downstream anchorage.The flow conditions of the designed channel can meet the navigation safety requirements under all conditions by adjusting the form of upstream separation levee,excavating the shoal on the right side of the channel,and moving down the downstream anchorage,etc.

关 键 词：鄱阳湖水利枢纽 通航水流条件 优化措施 物理模型 

分 类 号：TV61[水利工程—水利水电工程] U64[交通运输工程—船舶及航道工程]