桩基挡板式透空堤消浪特性物理模型试验研究  

Experiment study on wave dissipation characteristics of baffled permeable breakwater on piled foundation

作　　者：王智辉 WANG Zhi-hui(Fujian Port&Waterway Investigation&Design Institute,Fuzhou,Fujian 350002,China)

机构地区：[1]福建省港航勘察设计院有限公司,福建福州350002

出　　处：《中国港湾建设》2023年第8期71-77,共7页China Harbour Engineering

摘　　要：桩基挡板式透空堤是一种适用于近海较深水环境建港的一种新型防波结构,在满足消浪要求、降低建筑成本的同时,能够保证港内外的水体交换,具有较广泛的应用前景。由于波浪经过透水结构的传播是波波相互作用的强非线性过程,因此难以通过数学模型进行准确反映波浪与透空堤相互作用情况。通过开展波浪物理模型试验,对不同水深及波浪要素作用下不同挡板入水深度的透空堤开展研究,分析了透空堤消浪效果随主要影响因子的变化规律,并将试验结果与较常用的计算方法进行了对比。研究结果表明透空堤消浪性能受水深及入射波周期影响较大,受波高变化影响相对较小,适用于波浪周期及潮差较小的海域,同时通过试验结果与较常用的计算方法的对比,提出了工程设计中桩基挡板式透空堤透射系数确定方法的应用建议。A baffled permeable breakwater on pile foundation is a novel sort of wave protection structure appropriate for harbor development in an offshore deep-water environment.It has a wide range of potential applications since it can fulfill the demands of wave dissipation and reduction of construction cost,and guarantee the exchange of water inside and outside the harbor.It is challenging to effectively represent the interaction between waves and a permeable breakwater by mathematical modeling because the wave propagation via a permeable structure is a powerful nonlinear mechanism for wave interaction.The physical experiments are conducted to examine a permeable breakwater with its baffle panels in varying water depths and under the influence of various wave elements.The law governing the change in effects on wave reduction of permeable breakwater with respect to the major influencing factors is analyzed,and the experimental results are compared with more widely accepted calculation techniques.The findings demonstrate that water depth and incident wave periods have a significant impact on the ability to absorb waves of the permeable breakwater,but wave height change has a negligible impact.It is appropriate for coastal areas with short wave periods and modest tidal ranges.In addition,recommendations for using the transmission coefficient determination method of a permeable breakwater on pile foundation in engineering design are made by comparing the experimental findings with widely used calculation techniques.

关 键 词：透空式防波堤 波浪 透射系数 物模试验 

分 类 号：U656[交通运输工程—港口、海岸及近海工程] TV139.2[交通运输工程—船舶与海洋工程]