神岗山大桥通航水流条件数值模拟研究  

Numerical simulation study of navigable water flow conditions at Shengangshan Bridge

作　　者：江斌 陈静[2] JIANG Bin;CHEN Jing(Jiangxi Port&Waterway Design Institute Co.,Ltd.,Nanchang 330008,China;School of Hydraulic Engineering,Nanchang Institute of Technology,Nanchang 330099,China)

机构地区：[1]江西省港航设计院有限公司,江西南昌330008 [2]南昌工程学院水利工程学院,江西南昌330099

出　　处：《南昌工程学院学报》2024年第6期27-33,共7页Journal of Nanchang Institute of Technology

基　　金：江西省交通运输厅科技项目(2021S0014)。

摘　　要：为促进区域经济发展,吉安市拟在禾水河与赣江交汇口西南侧新建1000 t级通用码头。拟建码头工程下游现有一座神岗山大桥,桥区通航净空尺度控制标准为Ⅵ-(2),不能满足码头停靠船舶等级要求。基于平面二维水流运动基本方程,针对研究河段可能存在的多种通航水流条件对神岗山大桥进行了数值模拟,并复核了其通航净宽和净高。研究结果显示桥区水流的流速和流态满足设计船型单孔单向通航的基本要求,最高通航限制水位为47.48 m。该研究结果可为新码头的建设期和运营期安全通航提供技术支持。To meet the demand for regional economic development,Ji’an City plans to construct a 1,000-ton general-purpose dock on the southwest side of the confluence of Heshui River and Ganjiang River.In the downstream of the proposed dock site,there is already a Shengangshan Bridge,with a navigation clearance standard of VI-(2),which does not meet the requirements for the docked vessel’s grade.This paper conducts numerical simulations of various navigation water flow conditions in this river section,analyzes the flow velocity and flow patterns in the bridge area,verifies the navigation width and height,and determines the navigation method and maximum navigable water level for the bridge area,with the purpose of providing technical support for the construction and operation of the dock.

关 键 词：神岗山大桥 数值模拟 通航水流条件 净空尺度 

分 类 号：TV135.4[水利工程—水力学及河流动力学]