斜向波作用下斜坡堤平均越浪量的折减效应  

Reduction effect of oblique wave attack on average overtopping volume of mound breakwaters

作　　者：王超[1] 方波 张志鹏 戈浩波 WANG Chao;FANG Bo;ZHANG Zhi-peng;GE Hao-bo(CCCC-FHDI Engineering Co.,Ltd.,Guangzhou 510290,China)

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510290

出　　处：《水运工程》2023年第1期24-28,共5页Port & Waterway Engineering

摘　　要：总结对比了国内外现有斜向波作用下斜坡堤平均越浪量计算方法,以北非某港口新建斜坡堤为例,计算并与3D物理模型试验结果对比验证。结果表明:波向角在0°~20°,斜向波对平均越浪量的折减效应较不明显,设计可按正向波考虑;波向角大于20°,折减效应逐渐显著,宜考虑折减效应。对于波向角为30°、Accropode TM作护面的斜坡堤,神经网络法和van Gent公式(组合2)计算结果贴近试验值;Galland、van der Meer和van Gent公式(组合1)结果相近且偏小;国标公式计算结果偏保守;Lykke公式偏冒险,不建议采用。This paper summarizes and compares the existing calculation methods for the average overtopping volume of mound breakwaters under oblique wave attack both at home and abroad.Taking a new mound breakwater of a port in North Africa as an example,we calculate the average overtopping volume and compare it with the result of a 3D physical model test.The results show that when the wave attack angle ranges from 0°to 20°,the reduction effect of oblique waves on the average overtopping volume is insignificant,and they can be considered perpendicular waves in design;when the wave attack angle is greater than 20°,the reduction effect is gradually significant,which should be taken into account.For Accropode TM armored mound breakwaters with a wave attack angle of 30°,the calculation results of the neural network method and van Gent formula(Combination 2)are close to those of the physical model test,and the results of the Galland formula,van der Meer formula,and van Gent formula(Combination 1)are similar and relatively small.The calculation results by Chinese standards are conservative;the Lykke formula is risky,and thus it is not recommended.

关 键 词：斜坡堤 斜向波 波向角 平均越浪量 折减效应 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]