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高集海堤打开后马銮湾开口对厦门东西海域的影响
崔峥,佘小建,徐啸
0
(南京水利科学研究院,江苏 南京210024)
摘要:
随着厦门高集海堤打开及东西海域清淤工程实施,厦门海域边界条件和水动力环境均发生了较大变化.根据最新边界条件、地形条件和水文泥沙条件,通过数学模型研究打开马銮湾对厦门东西海域的影响.研究结果表明大潮条件下,高集海堤打开后,高集海堤处产生自西向东的净潮量为3 930亿 m3,西海域的水体交换能力显著增强;进一步打开马銮湾后,增加的涨、落潮总潮量平均4 560亿 m3,增加的潮量分别通过鼓浪屿断面和五通断面进出西海域和同安湾,分配比例接近1∶1.马銮湾开口可以增加东西海域水体交换能力,但东西海域水质是否改善取决于马銮湾水质情况.
关键词:  物理海洋学  高集海堤  马銮湾  厦门西海域  水体交换  数学模型
DOI:10.3969/J.ISSN.2095-4972.2018.04.005
基金项目:国家重点研发计划资助项目(2018YFC0407505)
Influence of Maluan Bay opening on the western and the eastern waters of Xiamen after Gaoji Crossway opening
CUI Zheng,SHE Xiao-jian,XU Xiao
(Nanjing Hydraulic Research Institute,Nanjing 210024,China)
Abstract:
With the opening of Gaoji Crossway and the dredging performance in Tongan Bay and in the western waters of Xiamen, the boundary conditions and hydrodynamic environment of Xiamen sea have changed greatly. Based on the latest boundary conditions, topography conditions and hydrology and sediment conditions, the influence of Maluan Bay opening on Tongan Bay and the western waters of Xiamen is studied used mathematical modelling. As results, under the conditions of spring tide when Gaoji Crossway was opened, the net tidal volume generated from the Gaoji Crossway opening was 3 930×108m 3, and the exchange capacity of water in the western waters was significantly enhanced. After further opening of Maluan bay, the total tidal volume will increase in average of 4 560×108 m3 flowing in through Gulangyu sections and Wutong sections to Tongan Bay and the western waters, respectively, with allocation proportion close to 1∶1. The water exchange capacity between Tongan Bay and the western waters can be enhanced after the opening. However, the water quality of Tongan Bay and the western waters will depend on the water quality of Maluan Bay.
Key words:  physical oceanography  Gaoji Crossway  Maluan Bay  western waters of Xiamen  exchange of water mass  mathematical modelling

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