大连港太平湾港区扩建工程潮流泥沙数学模型研究  

Study on tidal current and sediment mathematical model of Taiping Bay port expansion project of Dalian Port

作　　者：姚姗姗 解鸣晓 YAO Shan-shan;XIE Ming-xiao(Tianjin Research Institute for Water Transport Engineering,Key Laboratory of Engineering Sediment,Ministry of Transport,Tianjin 300456,China)

机构地区：[1]交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456

出　　处：《水道港口》2022年第5期596-602,共7页Journal of Waterway and Harbor

基　　金：国家自然科学基金面上项目(52171260)。

摘　　要：针对大连港太平湾港区扩建工程,建立考虑波浪作用的二维潮流、泥沙数学模型,在对模型进行充分验证的基础上,模拟港区扩建工程方案实施后潮流运动规律,分析流场特性及航道横流,预测正常天气条件下航道港池的泥沙回淤情况,为大连港太平湾港区扩建方案的设计提供科学依据和技术支撑。研究结果表明:工程海域波浪潮流动力不强,泥沙来源少,正常天气下水体含沙量较低。太平湾港区扩建工程实施后,航道沿程最大横流不足0.5 m/s,正常天气下港池航道平均年淤强不足0.2 m/a,最大年淤强仅在0.35 m/a左右。Taking Taiping Bay port expansion project as background,a 2-D tidal current and sediment numerical model considering wave action was used to simulate the flow and sediment transport law after the project,then field characteristics and cross-flow in channel are analyzed,deposition of channel and basin under normal weather condition is predicted finally,scientific basis is provided for the design of the expansion scheme of Taiping Bay port area of Dalian port.The following conclusions are drawn:the wave and tidal current dynamics in the project sea area are not strong,the sediment sources are little,and the suspended sediment concentration is very low in normal weather.After the construction of the project,the maximum cross flow along the channel is less than 0.5m/s.Under normal weather,the average annual siltation of the basin and channel is less than 0.2 m/a,and the maximum annual siltation is only about 0.35 m/a.

关 键 词：太平湾港区 数学模型 潮流 泥沙 航道 港池 

分 类 号：U653[交通运输工程—港口、海岸及近海工程] TV142[交通运输工程—船舶与海洋工程]