有斜坡棱体掩护的防波堤直立墙波浪力试验研究  

Experimental study on wave force of vertical breakwater wall shield by sloping prism

作　　者：黄旺祥[1] 陈成 HUNAG Wangxiang;CHEN Cheng(CCCC Water Transportation Consultants Co.,Ltd.,Beijing 100007,China)

机构地区：[1]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2024年第11期28-32,共5页Port & Waterway Engineering

摘　　要：抛石防波堤内部存在透浪和透流的现象,有斜坡棱体掩护的防波堤直立墙受到外海波浪力作用,但波浪力大小尚无成熟的计算方法。通过防波堤断面物理模型试验,研究斜坡棱体掩护对直立墙波浪力的影响规律,分析试验结果得出结论:直立墙在斜坡棱体掩护下受到的波浪力作用明显减小。斜坡结构顶宽加大,直立墙波浪力减小,折减系数减小,但宽度超过一定值后,波浪力减小的幅度变缓,建议设计阶段结合模型试验论证最经济方案。合田公式波浪力折减系数偏大,在前期方案研究阶段,不具备开展模型试验条件时,建议有掩护直立墙折减系数取0.5。There are wave and current penetrating phenomena in riprap breakwater,the vertical wall of breakwater with slope prism shield is subjected to the wave force in the open sea,but there is no mature calculation method for the magnitude of wave force.This paper studies the influence law of slope prism shield on the wave force of vertical wall through the physical model test of the breakwater section.The following conclusions are drawn by analyzing the experimental results.The wave force of the vertical wall with sloping prism is obviously reduced.With the increase of the top width of the slope structure,the wave force of the vertical wall decreases and the reduction coefficient decreases,However,when the width exceeds a certain value,the amplitude of the wave force reduction slows down.It is suggested that the most economical scheme should be demonstrated in combination with the model test in the design stage.The reduction coefficient of wave force in Goda formula is too large.In the preliminary scheme research stage,when the conditions for model test are not available,it is recommended to take 0.5 as the reduction coefficient of shielded vertical wall.

关 键 词：防波堤 斜坡棱体掩护 直立墙 波浪力 

分 类 号：U65[交通运输工程—港口、海岸及近海工程]