规则波作用下刚性植被海岸准静态平衡剖面试验

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英文篇名：Experiment of quasi-static equilibrium profile of rigid vegetation coast under regular wave action 作者：江晨辉 ; 曹海锦 ; 冯卫兵 ; 冯曦 英文作者：JIANG Chen-hui;CAO Hai-jin;FENG Wei-bing;FENG Xi;College of Harbor,Coastal and Offshore Engineering,Hohai University;College of Oceanography,Hohai University; 关键词：规则波 ; 植被海岸 ; 平衡剖面 ; 无量纲数 英文关键词：regular wave;;vegetation coast;;equilibrium profile;;dimensionless number 中文刊名：SYGC 英文刊名：Port & Waterway Engineering 机构：河海大学港口海岸与近海工程学院;河海大学海洋学院; 出版日期：2019-04-11 10:12 出版单位：水运工程 年：2019 期：No.554 基金：国家自然科学基金青年科学基金项目(51709092);; 江苏省自然科学基金青年基金项目(BK20170865) 语种：中文; 页：SYGC201904003 页数：9 CN：04 ISSN：11-1871/U 分类号：16-23+39

摘要

海岸植被作为新兴的生态护岸方式受到广泛关注。针对水动力要素对岸滩演变的作用,进行波浪及水深条件对植被岸滩准静态平衡剖面的影响规律研究。采用物理模型试验的方法,通过定性和定量分析,得出不同波高、不同周期规则波对植被岸滩平衡剖面的影响规律,以及波陡与岸滩无量纲尺寸的幂函数关系式和不同水深条件下各无量纲指标的变化趋势。结果显示,波高对平衡剖面的影响规律较明显,波周期及水深的影响规律性相对较弱;波陡与岸滩无量纲尺寸相关性良好,相对淤积尺寸的拟合结果优于冲刷尺度,小波陡区域拟合结果优于大波陡区域。
        Coastal vegetation has received widespread attention as a new way of emerging ecological revetment.Aiming at the effect of hydrodynamic factors on the coast evolution,we study the influence of wave and water depth on the quasi-static equilibrium profile of vegetation coast. By means of physical model experiment,we obtain the influence laws of different wave heights and different periodic regular waves on the equilibrium profiles of vegetation coast by qualitative and quantitative analysis,and get the power function relationship between the wave steepness and the dimensionless size of the coast and the variation trend of dimensionless index under different water depth conditions. The results show that the effect of wave height on the equilibrium profile is obvious, and the influence of wave period and water depth is relatively weak.Wave steepness fits well with the dimensionless size of shore-beach,and the fitting result of relative deposition scale is better than erosion size,and the result of wavelet steep region is better than that of large wave steepness region.

引文

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