淹没水平板-海草床生态型防波堤消浪性能研究  

Study on wave dissipation performance of ecological breakwater with seagrasses planted on submerged horizontal plate

作　　者：孟钰婕 李雪艳[1] 贺铭 隋钰程 张旭峰 MENG Yujie;LI Xueyan;HE Ming;SUI Yucheng;ZHANG Xufeng(Shandong Marine Aerospace Equipment Technology Innovation Center,Ludong University,Yantai 264025,China;Tianjin Key Laboratory of Port and Ocean Engineering,Tianjin University,Tianjin 300072,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]鲁东大学山东省海上航天装备技术创新中心,山东烟台264025 [2]天津大学天津市港口与海洋工程重点实验室,天津300072 [3]上海交通大学海洋工程全国重点实验室,上海200240

出　　处：《海洋工程》2025年第1期189-199,共11页The Ocean Engineering

基　　金：国家自然科学基金面上项目(52471295);海洋工程国家重点实验室(上海交通大学)开放基金资助项目(GKZD010087);山东省自然科学基金资助项目(ZR2022ME145)。

摘　　要：淹没水平板能够抵御波浪且不阻碍水体循环,海草床具有净化水质、固碳和保护岸堤的作用,因而设计了一种将海草床种植在淹没水平板上的生态型防波堤。进一步使用光滑粒子流体动力学方法建立数值波浪水槽,通过对文献中物理试验的数值重现,验证了波浪与可渗介质及与淹没水平板相互作用的可靠性,并对以可渗介质模型替代海草床的中值粒径参数进行了标定。在此基础上,研究了不同海草床茎枝密度、海草床高度、水平板淹没深度和波高下生态型防波堤的波浪透反射系数。结果表明,种植海草床可提升淹没水平板的波浪抵御能力。增大海草床的种植密度和相对高度,减小水平板的相对淹没深度,在相对波高较大的海域使用均有助于提升生态型防波堤的消浪性能。Submerged horizontal plates can resist waves while allowing water circulation,and seagrass beds serve to purify water,sequester carbon,and protect shorelines.This study proposes an ecological breakwater design that integrates seagrass beds planted on submerged horizontal plates.Using the smoothed particle hydrodynamics(SPH)method,a numerical wave flume was established.The reliability of wave interactions with permeable media and submerged horizontal plates was validated through numerical reproduction of physical experiments reported in the literature.The calibration of median particle diameter parameters for the permeable media model,which substitutes for the seagrass bed,was also conducted.Based on this,the wave transmission and reflection coefficients of the ecological breakwater were investigated under varying seagrass bed stem densities,seagrass bed heights,horizontal plate submergence depths,and wave heights.Results indicate that planting seagrass beds enhances the wave resistance capacity of submerged horizontal plates.Increasing seagrass planting density and relative height,reducing the relative submergence depth of the horizontal plate,and utilizing the breakwater in areas with larger relative wave heights all contribute to improving the wave dissipation performance of the ecological breakwater.

关 键 词：淹没水平板 海草床 生态型防波堤 光滑粒子流体动力学 数值波浪水槽 波浪透反射 

分 类 号：TV139.2[水利工程—水力学及河流动力学]