Experimental Study of Overtopping on Sea Dikes and Coastal Flooding Under the Coupled Processes of Tides and Waves  

作　　者：LI Yan-ting ZENG Cheng-jie Zhao Yi-han HU Po SUN Tian-ting HOU Yi-jun MO Dong-xue WANG Deng-ting 

机构地区：[1]School of Civil Engineering,Tianjin University,Tianjin 300350,China [2]State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China [3]Water Resources Department of Jiangsu Province,Nanjing 210029,China [4]Key Laboratory of Ocean Circulation and Waves,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [5]Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China [6]Laboratory for Ocean and Climate Dynamics,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,China

出　　处：《China Ocean Engineering》2022年第3期413-426,共14页中国海洋工程（英文版）

基　　金：This study was financially supported by the NSFC-Shandong Joint Fund Key Project(Grant No.U1706216);the Innovative Research Foundation of Ship General Performance(Grant No.31422118);the Nanjing Hydraulic Research Institute Special Fund for Basic Scientific Research of Central Public Research Institutes(Grant Nos.Y220013 and Y222004).

摘　　要：Storm surges are cataclysmic natural disasters that occur along the coasts and are usually accompanied by large waves.The effects of coupled storm surges and waves can pose a significant threat to coastal security.Previous labo-ratory studies on the effects of storm surges and waves on coastal structures have typically utilized steady water levels and constant wave elements.An indoor simulation of the coupled processes of tides and waves is developed by adding a tide generation system to an existing laboratory wave basin to model continuous dynamic tide levels so that tide generation and wave-making occur synchronously in the pool.Specific experimental methods are given,which are applied to further study waves overtopping on artificial sea dikes and coastal flooding evolution under the coupled actions of tides and waves.The results of the overtopping discharge obtained by the test with a dynamic water level are compared with those obtained from steady water level tests and the existing empirical formula.In addition,the impacts of ecological coastal shelterbelts and structures on coastal flood processes and distributions are also investi-gated.The proposed simulation methods provide a new approach for studying the effects of storm surges and waves on coastal areas.The study also aims to provide a reference for coastal protective engineering.

关 键 词：storm surge water level variation wave overtopping coastal flooding experimental technique 

分 类 号：P731.2[天文地球—海洋科学] U656.314[交通运输工程—港口、海岸及近海工程]