宽平台生态景观海堤结构稳定性试验验证  

Experimental verification of structural stability for ecological landscape embankment with wide platform

作　　者：刘阳 项存平 LIU Yang;XIANG Cun-ping(CCCC Third Harbor Consultants Co.,Ltd.,Shanghai 200032,China;Zhoushan Green Petrochemical Base Management Committee,Zhoushan 316021,China)

机构地区：[1]中交第三航务工程勘察设计院有限公司,上海200032 [2]舟山绿色石化基地管理委员会,浙江舟山316021

出　　处：《水运工程》2021年第5期1-5,共5页Port & Waterway Engineering

摘　　要：针对宽平台生态景观海堤结构稳定计算突破规范适用范围的问题,开展了物理模型试验验证。首先根据使用需求确定海堤设计的主要功能;其次通过理论计算挡浪墙、护面块体稳定及波压力值,初步确定海堤设计断面;最后根据波浪模型试验验证设计断面,对比分析理论计算与试验数据。试验结果表明:宽平台生态景观海堤堤顶挡浪墙与堤脚距离宜大于1.5倍波长,堤顶越浪量较小,背海面可种植绿化,挡墙稳定验算基本可忽略波浪力作用。距离堤脚1倍波长位置,护面块体应选择稳定可靠的形式,消浪作用显著。研究成果为宽平台生态海堤设计提供试验验证及合理建议。Aiming at the problem that the structural stability calculation for ecological landscape embankment with a wide platform breaks through the applicable scope of the codes,the physical model test is carried out.Firstly,we determine the main functions of embankment design according to the use requirements;secondly,we preliminarily determine the design section of embankment through the theoretical calculation of the stability and wave pressure of wave wall and armor block;finally,we verify the design section based on the wave model,compare and analyze the theoretical calculation and test data.The results show that:the distance between the seawall and the toe of the embankment with a wide platform should be greater than 1.5 times of the wavelength.Under this condition,the wave overtopping is small,and the greening can be planted back to the sea,so the effect of wave force can be ignored in the stability verification for the seawall.At the position 1 times the wavelength from the embankment toe,the stable and reliable type of armor block should be selected,and the wave dissipation effect is obvious.The research results provide experimental verification and reasonable suggestions for the design of ecological embankment with a wide platform.

关 键 词：宽平台 稳定性 波浪模型试验 越浪量 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]