一种反弧倾斜板透空防波堤结构消浪性能试验研究  

Experimental Study on the Wave Dissipation Performance of a Permeable Breakwater Structure With Reverse-Arc Inclined Plate

作　　者：于定勇[1] 高志洋 窦志豪 曲铭 葛晓蕾 YU Dingyong;GAO Zhiyang;DOU Zhihao;QU Ming;GE Xiaoei(College of Engineering,Ocean University of China,Qingdao 266100,China;Jinan Science and Technology Museum,Jinan 250002,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266404 [2]济南市科学技术馆,山东济南250002

出　　处：《海岸工程》2023年第2期111-120,共10页Coastal Engineering

基　　金：国家自然科学基金项目(51739010)。

摘　　要：在垂直板透空堤结构基础上,提出了一种反弧倾斜板透空防波堤结构。通过物模试验研究了该结构在规则波作用下的消浪性能,分析了在不同相对波高(H/d)、不同相对宽度(W/L)、不同反弧板开孔率(N_(d))、不同下挡板布置方案情况下该结构波能耗散和透射的变化规律。结果表明:与垂直板透空堤结构相比,该结构有更好的消浪性能,在全部试验工况内,最大波能耗散系数K^(s)为0.86,最小透射系数K_(t)仅为0.17;N_(d)对K_(s)和K_(t)影响较大,与其他N_(d)相比,N_(d)为11%~15%时消浪性能较好,K_(s)最大可提高10%;当增设下挡板且前部下挡板长度不断增大时,K_(s)不断减小,最小仅为0.69;增设下挡板能明显减小波浪透射。本文研究结果可为相关工程设计提供参考。A permeable breakwater structure with reverse arc inclined plate is proposed on the basis of the permeable breakwater with vertical plate.Through the physical model tests,the wave dissipation performance of the proposed structure under the action of regular waves is studied and the variations of wave energy dissipation and transmission are analyzed under the conditions of different relative wave height(H/d),different relative width(W/L),different porosity of the reverse arc plate(N_(d))and different lower baffle layout scheme.The results show that compared to the permeable breakwater structure with vertical plate,the proposed structure has a better wave dissipation performance.Within the scope of all the test operating conditions,the maximum wave energy dissipation coefficient(K_(s))of the structure is 0.86 and its minimum transmission coefficient K_(t) is 0.17.The energy dissipation coefficient K_(s) and the transmission coefficient K_(t) are greatly affected by N_(d).When the N_(d) ranges from 11%to 15%,the wave dissipation performance of the structure is better,with the K_(s) being maximally increased by 10%.When the lower baffle is added and the length of its front is increasing,the K_(s) decreases continuously,with the minimum value of K_(s) being only 0.69,implying that the adding of the lower baffle can significantly reduce the wave transmission.This study can provide reference for related engineering design.

关 键 词：反弧倾斜板 物理模型试验 波能耗散系数 透射系数 开孔率 

分 类 号：TV139.25[水利工程—水力学及河流动力学]