赣江南支吉里枢纽通航水流条件试验研究及其优化措施  

Experimental study on navigable flow conditions of Jili junction in southern branch of Ganjiang River and optimization measures

作　　者：方锦涛 赵建钧[1] 辜晋德[1] 王宇[1] FANG Jin-tao;ZHAO Jian-jun;GU Jin-de;WANG Yu(Nanjing Hydraulic Research Institute,Nanjing 210029,China;Hohai University,Nanjing 210098,China)

机构地区：[1]南京水利科学研究院,江苏南京210029 [2]河海大学,江苏南京210098

出　　处：《水运工程》2022年第6期139-144,共6页Port & Waterway Engineering

摘　　要：赣江南支吉里枢纽位于S形急弯河道,河势地形复杂,引航道口门区及连接段水流条件较差,依托1:100整体水工物理模型对其通航水流条件进行研究。结果表明:1)枢纽上游水流条件复杂,通过调整上游航线与主流交角至31.08°、整治滩地子堤高程至17 m、土堤退后30 m、合龙等工程措施,基本满足水流横向流速在0.3 m/s之内的要求。2)枢纽下游口门区及连接段可通过调整下游切滩角度至10°使得各项流速指标满足规范要求。The Jili junction of the southern branch of Ganjiang River is located in the channel with an S-shaped sharp bend and complex river regime topography,and thus the flow conditions in the entrance area of the approach channel and the connecting section are poor.Therefore,this paper studies its navigable flow conditions by the overall hydraulic physical model of 1:100.The results reveal that 1)the upstream flow conditions of the junction are complicated.The requirement of maintaining the lateral flow velocity within 0.3 m/s can be met by engineering measures including adjusting the intersection angle between the upstream route and the main flow to 31.08°,regulating the elevation of the sub-embankment on the beach to 17 m,retreating the earth embankment by 30 m,and joining the embankment.2)In the downstream entrance area and the connecting section of the junction,the downstream beach cutting angle can be adjusted to 10° to make each flow velocity indicator satisfy the requirements of the code.

关 键 词：船闸 通航水流条件 连接段 弯曲河段 

分 类 号：U641[交通运输工程—船舶及航道工程]