半封闭式港湾水动力特性分析——以香洲港为例  

Analysis of Hydrodynamic Characteristics of Semi-Enclosed Harbors—a Cause Study of Xiangzhou Port

作　　者：杨裕桂 宣小铭 刘国珍 佟晓蕾 袁菲 YANG Yugui;XUAN Xiaoming;LIU Guozhen;TONG Xiaolei;YUAN Fei(The Pearl River Hydraulic Research Institute,Guangzhou 510611,China;Key Laboratory of the Pearl River Estuary Regulation and Protection of Ministry of Water Resources,Guangzhou 510611,China;Hohai University,Nanjing 210098,China)

机构地区：[1]珠江水利委员会珠江水利科学研究院,广东广州510611 [2]水利部珠江河口治理与保护重点实验室,广东广州510611 [3]河海大学,江苏南京210098

出　　处：《人民珠江》2023年第12期101-109,135,共10页Pearl River

基　　金：中国水利水电科学研究院水利部泥沙科学与北方河流治理重点实验室开放基金(IWHR-SEDI-202105);流域水治理重大关键技术研究项目(〔2022〕YF001)。

摘　　要：受系列工程建设影响,半封闭式港湾往往出现水动力减弱,水体交换变差的现象,为研究工程建设对半封闭式港湾的水动力环境的影响,以珠江河口典型的半封闭式港湾香洲渔港为例,研究周边地区控制性详细规划对香洲渔港泄洪纳潮、水体交换等方面的影响。结果表明:规划方案实施后,规划区附近水域及上游口门水位变化不大,伶仃洋西侧潮流通道潮量变化较小,但香洲港港区潮量减小约1%,水动力进一步减弱,水体半交换周期增加约3.2%,尤其港区西北角水体交换能力相对较差,长期对水环境不利,有必要采取水动力增强措施。研究成果可为香洲港海域水动力提升整治提供参考。Affected by the construction of a series of projects,the semi-enclosed harbor often appears the phenomenon of weakening hydrodynamic force and worsening water exchange.In order to study the impact of project construction on the hydrodynamic environment of semi-closed harbors,a typical semi-enclosed port,namely Xiangzhou Fishing Port,in the Pearl River Estuary was taken as an example,and the impact of detailed control planning of the surrounding areas on flood discharge,tidal influx,and water exchange in Xiangzhou Fishing Port was studied.The results show that after the implementation of the planning scheme,the water level of the water area near the planning area and the upstream entrance gate,as well as the tidal volume of the tidal channel on the west side of Lingdingyang change slightly,but the tidal volume in the area of Xiangzhou Port decreases by about 1%.The hydrodynamic force is further weakened,and the semi-exchange cycle of the water body increases by about 3.2%.In particular,the water exchange capacity in the northwest corner of the port area is relatively poor,which is unfavorable to the water environment for a long time,and it is necessary to take hydrodynamic enhancement measures.The research results can provide a reference for hydrodynamic improvement in the water area of Xiangzhou Port.

关 键 词：半封闭式港湾 数值模拟 泄洪纳潮 水体交换 香洲港 

分 类 号：TV91[水利工程—水利水电工程]