天津南港工业区东港池支航道回淤模拟  

Siltation simulation on branch channel of east basin of Nangang industry zone in Tianjin

作　　者：张静[1] 韩信[2] 孙波[2] ZHANG Jing;HAN Xin;SUN Bo(CCCC First Harbor Consultants Co.,Ltd.,Tianjin 300222,China;Nanjing Hydraulic Research Institute,Nanjing 210029,China)

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300222 [2]南京水利科学研究院,江苏南京210029

出　　处：《水运工程》2022年第4期106-110,共5页Port & Waterway Engineering

基　　金：国家重点研发计划项目(2018YFC0407506);中央级公益性科研院所基本科研业务费专项资金重点项目(Y221015)。

摘　　要：天津南港工业区位于渤海湾典型的淤泥质海岸,其东港池拟建设连接大港航道的支航道。为准确预测航道的泥沙回淤状况,通过建立波浪潮流共同作用下的泥沙运动数学模型,选取现场实测大潮作为代表潮、以工程海域附近测波资料的能量加权平均结果作为代表波,对邻近的天津港15万吨级航道年均回淤资料进行验证。在此基础上,采用数学模型计算南港工业区海域的泥沙运动,预测南港工业区东港池支航道的年均泥沙回淤分布。结果表明,航道回淤主要发生在大港港区口门段与支航道前半段。Nangang industrial zone in Tianjin is located on a typical muddy coast in Bohai Bay,and an inner branch channel connecting to the Dagang channel is proposed to be built in its eastern basin.To predict the siltation of the channel,we establish a numerical model of sediment transport coupling with wave-current interaction,choose the spring tide data measured at the site as the representative tidal and the energy-weighted average of measured wave data from nearby observation station as the representative wave,and verify the model by the annual siltation data of the adjacent 150,000-ton waterway of Tianjin Port.On the basis,we apply the numerical model to calculate the sediment transport of the sea area of Nangang industrial zone,and predict the annual sedimentation along the branch channel of the east basin.The results show that the siltation mainly occurs in the entrance section of Nangang industrial zone and the first half part of the branch channel in the east basin.

关 键 词：淤泥质海岸 航道工程 泥沙运动 数值模拟 

分 类 号：U612[交通运输工程—船舶及航道工程]