砂质海床波浪传播衰减试验研究  

Experimental study on wave propagation attenuation over sandy seabeds

作　　者：陈欣欣 孙大鹏[1] 房克照[1] 孙培宇 李登皇 CHEN Xinxin;SUN Dapeng;FANG Kezhao;SUN Peiyu;LI Denghuang(State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,大连116024

出　　处：《水道港口》2023年第6期857-863,共7页Journal of Waterway and Harbor

基　　金：国家自然科学基金委员会-山东省人民政府联合基金资助(U1706226)。

摘　　要：近岸海床对波浪传播的影响是客观存在的。为研究砂质海床上波浪传播的衰减情况,综合考虑砂质海床孔隙率、海床相对厚度、波陡和相对传播距离等影响因素,开展砂质海床上波浪传播衰减物理模型试验。通过分析各影响因素与波高衰减率之间的关系,应用单一变量与多元非线性回归拟合方法,分别得到砂质海床上规则波浪与不规则波浪的波高沿程衰减率的计算关系式。验证结果表明,该计算关系式具有较好的精确性与适用性。The influence of nearshore seabed on wave propagation is objectively present.To investigate the attenuation of wave propagation on sandy seabeds,a physical model experiment was conducted,comprehensively considering influencing factors such as porosity of sandy seabeds,relative seabed thickness,wave steepness,and relative propagation distance.By analyzing the relationships between these influencing factors and the wave height attenuation rate,a methodology involving single-variable and multivariate nonlinear regression fitting was applied,resulting in the derivation of calculation formulas for wave height attenuation rates along distances for both regular and irregular waves on sandy seabeds.Verification results indicate that these calculation formulas exhibit favorable accuracy and applicability.

关 键 词：砂质海床 波高衰减 规则波 不规则波 

分 类 号：U65[交通运输工程—港口、海岸及近海工程] TV139.2[交通运输工程—船舶与海洋工程]