矾石航道建设对水动力和冲淤演变的影响研究  

The Impact of Fanshi Waterway on the Hydrodynamic and Morphological Change

作　　者：赵昊毅 林凯荣 谭超[4] ZHAO Haoyi;LIN Kairong;TAN Chao(School of Civil Engineering,Sun Yat-sen University,Zhuhai 519082,China;Guangdong Provincial Waterway Affairs Center,Guangzhou 510115,China;Shenzhen Waterway Affairs Center of Guangdong Province,Shenzhen 518031,China;Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510635,China)

机构地区：[1]中山大学土木工程学院,广东珠海519082 [2]广东省航道事务中心,广州510115 [3]广东省深圳航道事务中心,广东深圳518031 [4]广东省水利水电科学研究院,广州510635

出　　处：《广东水利水电》2023年第10期11-19,共9页Guangdong Water Resources and Hydropower

基　　金：广东省基础与应用基础研究基金-卓越青年团队项目(编号:2023B1515040028)。

摘　　要：矾石航道是伶仃洋继广州港出海航道之后规划的另一条重要航道,广东省政府将其列入重点建设项目,在“十四五”期开工建设。该文基于FVCOM开源模型,对矾石水道开展三维潮流数模试验研究,研究其建设是否对周边水域产生不利影响,为工程决策提供依据。研究结果表明:矾石航道轴线布置与矾石水道涨落潮主流向基本一致,顺主流,横流小;矾石航道工程实施后对水位的影响不大,整体变化幅度在0.1~0.2 cm之间;工程实施后对周围水动力的影响范围仅局限在航道沿程有开挖浚深里程段,大部分水域流速增减幅度在0.10 m/s以内;航道建设后年淤厚区间约0.21~0.65 m,年回淤量约62万m 3,航道工程实施后不会对周边工程海域的水流条件产生不利影响。Fanshi Channel,located in the east of the sea route of Guangzhou Port,is an important channel on Lingding Ocean.Therefore,Guangdong Province has listed it as a key construction project and started construction during the“14th Five Year Plan”period.In order to verify the feasibility of this project,this paper is based on the FVCOM open source model to conduct 3D tidal current numerical simulation experimental research on the Fanshi Waterway.The test mainly studies whether the project has adverse effects on surrounding waters,providing a basis for project decision-making.The results show that the axis layout of Fanshi Channel is basically consistent with the mainstream direction of rising and falling tide.After the implementation of the Fanshi Waterway Project,the impact on the water level is not significant,and the overall variation range is between 0.1~0.2 cm.The impact of the project on the surrounding hydrodynamic forces is limited to areas with excavation.The increase or decrease in flow velocity in most water areas is within 0.10m/s.The annual sedimentation thickness after the construction of the waterway is about 0.21~0.65 m.After the construction of the waterway,the annual sedimentation thickness is about 0.21~0.65 m,and the annual siltation amount is about 620000 m 3.

关 键 词：潮流 FVCOM模型 水动力 矾石航道 冲淤演变 

分 类 号：U612.3[交通运输工程—船舶及航道工程]