外海长周期波浪作用下的斜坡堤结构设计  

Structural design of slope breakwater under long-period mixed wave in offshore water

作　　者：刘丽娜 顾祥奎 LIU Li-na;GU Xiang-kui(CCCC Third Harbor Consultants Co.,Ltd.,Shanghai 200032,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

出　　处：《水运工程》2021年第7期65-71,共7页Port & Waterway Engineering

摘　　要：长周期涌浪和风浪的混合浪具有周期长、波能大的特点,该种环境下的斜坡堤结构设计不能简单地参照现行规范执行。依托某已建工程,采用计算及理论分析对其设计过程和物理模型试验验证过程进行对比分析,得出适用于外海长周期混合浪作用下的斜坡堤结构设计要点。结果表明,外坡护面块体的选用和防浪墙顶高程确定等设计需要额外考虑经验系数;墙后堤顶和堤后斜坡需要格外加强,堤顶尽量选用合适的防浪墙结构形式;现行规范的护底块石计算公式在浅水条件下并不适用。The mixed wave of long-period surge and wind wave has the characteristics of long-period and large wave energy,and the design of slope breakwater structure in such environment cannot be carried out by simply referring to current codes.Based on a built project,we carry out the calculation and theoretical analysis to compare and analyze the design process and physical model test verification process of the project,and obtain the key points of structural design for sloping breakwater under long-period mixed wave in the open sea.The results show that the experience coefficient in the design should be considered such as the selection of block for outer slope protection and determination of the height of the top of the wave wall.The top of the breakwater behind the wall and the slope behind the breakwater need to be strengthened especially,and the appropriate structure type of the wave break wall should be selected as far as possible on the top of the breakwater.The calculation formula of rock protection bottom in the current code is inappropriate under the condition of shallow water.

关 键 词：长周期混合浪 斜坡堤设计 物理模型试验验证 

分 类 号：U656.21[交通运输工程—港口、海岸及近海工程]