海堤迎水面生态砌块抗浪特性研究  

Study on Anti-wave Characteristics of Ecological Blocks on Seawall Upstream

作　　者：王盟[1] 王政平[1] 曹春顶[1] WANG Meng;WANG Zheng-ping;CAO Chun-ding(China Water Resources Pearl River Planning Surveying&Designing Co.,Ltd.,Guangzhou 510610,China)

机构地区：[1]中水珠江规划勘测设计有限公司,广东广州510610

出　　处：《水电能源科学》2022年第5期123-126,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：为解决现有海堤迎水面护面结构生态性与抗浪性的矛盾,提出一种新型生态砌块结构,为研究不同生态砌块的抗浪特性,采用RNGκ-ε模型和VOF方法,建立三维两相流数值模型模拟波浪对海堤迎水面的冲刷过程,分析海堤迎水面铺筑不同类型的生态砌块对堤身的防护效果。结果表明,海堤迎水面采用新型生态砌块护面抗浪效果良好,单个砌块尺寸超过40 cm×40 cm×40 cm时不易受波浪作用产生翘动,砌块内部流场较稳定,能够有效防止种植基质颗粒流失。新型生态砌块已应用于广州南沙区灵山岛尖北段超级海堤工程,生态和抗浪效果良好,对于有生态景观要求的海堤有较好的应用推广价值。In order to solve the contradiction between the ecology and wave resistance of the existing seawall facing surface protection structure, a new type of ecological block structure was proposed. In order to study the anti-wave characteristics of different ecological blocks, based on the RNG κ-ε model and VOF method, a three-dimensional two-phase flow numerical model was established to simulate the scouring process of waves on the seawall upstream surface, and the protection effect of different types of ecological blocks on the seawall upstream surface was analyzed. The results show that the new type of ecological block has a good anti-wave effect on the upstream of seawall, and the size of a single block is more than 40 cm×40 cm×40 cm. The flow field inside the block is relatively stable, which can effectively prevent the loss of planting matrix particles. The new ecological block has been applied to the super seawall project in the north section of Lingshan Island, Nansha District, Guangzhou. The ecological and anti-wave effect is good. It has the application and promotion value for the seawall with the requirements of soil consolidation and ecological landscape.

关 键 词：海堤 生态 砌块 抗浪 特性 

分 类 号：TV139.26[水利工程—水力学及河流动力学]