复杂河道边界条件下新建船闸布置方案及运行方式  

Layout and operation of new navigation lock under complicated river condition

作　　者：肖钦 赵凯[2] 范红霞[3] 王建中[3] 王勇[3] XIAO Qin;ZHAO Kai;FAN Hongxia;WANG Jianzhong;WANG Yong(Jiangxi Port Group Co.,Ltd.,Nanchang,330008 China;CCCC Water Transportation Consultants Co.,Ltd.,Beijing 100007,China;Nanjing Hydraulic Research Institute,Nanjing 210024,China)

机构地区：[1]江西省港口集团有限公司,江西南昌330008 [2]中交水运规划设计院有限公司,北京100007 [3]南京水利科学研究院,江苏南京210024

出　　处：《水运工程》2023年第9期93-100,共8页Port & Waterway Engineering

基　　金：南京水利科学研究院中央级公益性科研院所基本科研业务费专项资金(Y220011)。

摘　　要：袁河为赣江一级支流,中下段属丘陵与平原过渡段,河道蜿蜒曲折,平均比降0.2‰,洪水涨落较快。拟建龙尾洲枢纽为袁河航道提升工程最后1座梯级,坝址上下游为连续弯道,且有挑流凸嘴和多处边滩,复杂的河道边界给船闸方案的布置带来困难。本文建立龙尾洲枢纽整体物理模型,开展船闸通航水流条件试验,指出在现有边界条件以及规范要求20 a一遇洪水条件下,船闸难以达到安全通航,因此研究改善措施,结合袁河洪水特点,给出了适合船舶航行的水闸调度方式和最大通航流量,为工程设计和管理提供了依据。在洪水历时较短的河流上建设高等级船闸时,在满足过闸货运量的基础上,建议采用最大通航流量管理运行,优化设计隔流墙、靠船墩和导航墙,保证通航安全,节约投资成本。The Yuan River is a primary tributary of the Ganjiang River.The middle and lower reaches of the Yuan River are meandering,which belong to a transitional river between hills and plains.The average bed slope is 0.2‰,and the flood rise and fall fast.The proposed Longweizhou project is the last step of the Yuan River channel upgrading project.The upstream and downstream reaches of the dam site are continuous bends,and there exists protruding banks deflecting flow and point bars.The complex boundary conditions make it difficult to design the ship-lock.The overall physical model of Longweizhou project is constructed to carry out the tests of navigable water flow conditions of the ship-lock.Under the current boundary conditions,the ship-lock is difficult to achieve safe navigation under the 20-year flood conditions required by the standard.Thus,the study of improvement measures is carried out to determine the operation regulation of lock gates and maximum navigable discharge suitable for ship navigation in combination with the flood characteristics of the Yuan River,which provides the basis for engineering design and management.When constructing high-grade ship-locks on rivers with short flood duration,it is recommended to adopt the maximum navigable discharge for ship-locks management and optimizing the design of the partition wall,berthing dolphin and navigation wall to ensure navigational safety and save investment costs on the basis of satisfying the cargo volume through the ship-lock.

关 键 词：过渡段河流 高等级船闸 物理模型 通航水流条件 改善措施 最大通航流量 

分 类 号：U642[交通运输工程—船舶及航道工程]