聚氨酯碎石护坡波浪作用特性  

Characteristics of wave-structure interaction of PBA revetment

作　　者：丁洁 董永福 DING Jie;DONG Yong-fu(Shanghai Waterway Engineering Design and Consulting Co.,Ltd.,Shanghai 200120,China)

机构地区：[1]中交上海航道勘察设计研究院有限公司,上海200120

出　　处：《水运工程》2022年第4期21-24,75,共5页Port & Waterway Engineering

摘　　要：在风浪较大的河口地区,堤坝采用聚氨酯碎石护坡。通过理论研究、现场监测和物理模型试验等方式,分析聚氨酯碎石护坡的结构稳定性、波浪力分布和消浪效果。结果表明:1)在有效波高为2.0~3.0 m的波浪作用下,边坡12、厚20~30 cm的聚氨酯碎石护坡是稳定的;2)聚氨酯碎石护坡能有效降低波浪爬高,设计中糙渗系数取0.80~0.85;3)最大波压强不小于0.5ρgH(海水密度、重力加速度与波高的乘积)。In the estuary area with heavy wind waves,polyurethane bonded aggregate(PBA)revetment is applied to the dams.By theoretical research,on-site monitoring,and physical model test,this paper studies structural stability,wave force distribution,and wave damping of PBA revetment.The results show:1)Under significant wave height of 2.0-3.0 m,PBA revetment with thickness of 20-30 cm remains stable when the slope ratio is 12.2)PBA revetment can effectively reduce wave run-up with a designed roughness coefficient of 0.80-0.85.3)The maximum wave pressure is not less than 0.5ρgH(the product of seawater density,gravitational acceleration,and wave height).

关 键 词：聚氨酯碎石 护面结构 波浪爬高 波浪作用 

分 类 号：U656[交通运输工程—港口、海岸及近海工程]