海堤多级平台消浪效果研究  

Study on Wave Dissipation Effect of Seawall Multi-stage Platform

作　　者：王盟[1] 曹春顶[1] 贾东远 WANG Meng;CAO Chun-ding;JIA Dong-yuan(China Water Resources Pearl River Planning Surveying&Designing Co.,Ltd.,Guangzhou 510000,China)

机构地区：[1]中水珠江规划勘测设计有限公司,广东广州510000

出　　处：《水电能源科学》2021年第11期136-139,共4页Water Resources and Power

基　　金：广东省海洋经济发展专项资金项目(GDNRC[2020]067)。

摘　　要：为研究海堤遭遇风暴潮侵袭时迎浪面多级平台对波浪的消减效果,采用RNGκ-ε模型模拟紊流,VOF法追踪自由表面,建立三维风浪流耦合模型并与物理模型试验结果对比验证模型的可靠性,利用经验证后的数学模型模拟不规则波在多级平台上的运动和越浪过程,分析了平台级数、宽度对越浪量的影响,提出相同波要素在直立堤上纵向波浪高度与横向消浪平台合理尺度的定量关系及波浪运动过程中海堤多级平台表面压力分布情况。成果已应用于广州市南沙区灵山岛尖北段超级海堤工程中,经过数次风暴潮检验证明达到了预期效果,可为海堤多级平台设计提供参考。In order to study the wave attenuation effect of multi-stage platform on the wave front when the seawall is attacked by storm surge,RNGκ-εmodel is used to simulate turbulent flow,VOF method is used to track the free surface,and a three-dimensional wind wave current coupling model is established.The reliability of the model is verified by comparing with the experimental results of the physical model.The verified mathematical model is used to simulate the motion and overtopping process of irregular waves on multistage platforms,and the impact of platform series and width on overtopping is analyzed.The quantitative relationship between the wave intensity and the reasonable scale of the transverse wave dissipating platform,as well as the surface pressure distribution of the multi-stage platform on the seawall in the process of wave motion is proposed.The results have been applied to the super seawall project in the north section of Lingshan Island,Nansha District,Guangzhou.After several storm surge tests,it is proved that the expected effect has been achieved.The results can provide reference for the design of multi-stage seawall platform.

关 键 词：海堤 多级平台 消浪 越浪量 

分 类 号：TV139.29[水利工程—水力学及河流动力学]