桃源枢纽河段通航水流条件数值模拟  

Numerical simulation of navigation water flow conditions in Taoyuan Hub section

作　　者：王多银[1,2] 吴穗庆 段伦良 李国洋 唐选海 秦晨曦 杜文力 WANG Duoyin;WU Suiqing;DUAN Lunliang;LI Guoyang;TANG Xuanhai;QIN Chenxi;DU Wenli(Hehai College of Chongqing Jiaotong University,Chongqing 400074,China;National Engineering Research Center for Inland Waterway Regulation,Chongqing 400074,China)

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]国家内河航道整治工程技术研究中心,重庆400074

出　　处：《水运工程》2025年第1期136-144,共9页Port & Waterway Engineering

摘　　要：针对桃源枢纽船闸存在的碍航问题,以沅水桃源枢纽二线船闸建设工程为项目依托,采用二维动力学数值模拟方法对桃源枢纽—周文庙水文站河段通航水流条件进行研究。基于对多工况水深、水位、流速等参数的分析,进而研究枢纽与坝下航道的通航水流条件和碍航滩段,并根据滩险问题提出挖槽疏浚等航道整治措施。结果表明:在现有地形条件下工况1(Q=217 m^(3)/s)和工况2(Q=380 m^(3)/s)在距桃源枢纽0~20 km河段和80~95 km河段碍航问题突出,当流量大于工况3(1 233 m^(3)/s)时满足Ⅲ级航道尺度要求。经数学模型验证,对碍航滩段进行拟定的挖槽疏浚等措施能够有效改善航道的通航水流条件。To the problem of navigation obstruction in the Taoyuan hub ship lock,this paper takes the construction project of the Taoyuan hub second line ship lock in Yuanshui as the project basis,and uses two-dimensional dynamic numerical simulation method to study the navigable water flow conditions of the river section from Taoyuan Hub to Zhouwenmiao Hydrological Station.Based on the analysis of parameters such as water depth,water level and flow velocity under multiple working conditions,the navigable flow conditions and obstructed beach sections of the hub and downstream waterway are studied,and the channel improvement measures such as trench dredging are proposed according to the beach risk problem.The results show that under the existing terrain conditions,the navigation obstruction problems of working conditions 1(Q=217 m^(3)/s)and 2(Q=380 m^(3)/s)are prominent in the river section 0-20 km and 80-95 km from Taoyuan hub,and when the flow rate is greater than working condition 3(1233 m^(3)/s),it meets the requirements of Class III channel scale.Through mathematical model verification,measures such as trench dredging can effectively improve the navigable water flow conditions of the waterway.

关 键 词：数值模拟 通航水流条件 航道整治 

分 类 号：U617[交通运输工程—船舶及航道工程]