Experimental study on inner slope failure mechanism of seawall by coupling effect of storm surge and wave  

作　　者：PAN Junning WANG Shupeng SUN Tianting CHEN Maowen WANG Dengting 

机构地区：[1]Nanjing Hydraulic Research Institute,Nanjing 210029,China [2]Key Lab of Port,Waterway and Sedimentation Engineering of MOT,Nanjing 210029,China

出　　处：《Journal of Oceanology and Limnology》2019年第6期1912-1920,共9页海洋湖沼学报（英文）

基　　金：Supported by the National Key R&D Program of China(No.2016YFC1402002);the Fifteenth Session Program between China and Bulgaria Scientific and Technological Cooperation Committee(No.15-13);the Major Project of Nanjing Hydraulic Research Institute Funds(Nos.Y218005,Y218006)

摘　　要：In the context of global climate change,the impact of group-occurring ocean dynamic disasters on China's offshore areas is becoming more and more intense.The study of the effect of existing ocean dynamic disasters on offshore hazard-bearing bodies mostly focuses on the effect of single disaster-causing factors,and it is still insufficient to study storm surge and dynamic wave coupling&reinforcement effects as well as the process of the dynamic response of such hazard-bearing bodies as seawalls.This study firstly realized the synchronous process of water level and wave through continuous tide generation and wave generation by the wave maker and tide generating device,so as to realize the dynamic coupling simulation of storm surge and wave in the laboratory.Then the physical model test of the typical seawall section was carried out under the dynamic coupling of storm surge and wave as well as at a conventional fixed water level respectively.In the process of test wave overtopping discharge and the damage process of the levee crown and backwall of seawalls were observed and compared,and their damage mechanism was also studied.In the context of global climate change, the impact of group-occurring ocean dynamic disasters on China’s offshore areas is becoming more and more intense. The study of the effect of existing ocean dynamic disasters on offshore hazard-bearing bodies mostly focuses on the effect of single disaster-causing factors, and it is still insufficient to study storm surge and dynamic wave coupling & reinforcement effects as well as the process of the dynamic response of such hazard-bearing bodies as seawalls. This study firstly realized the synchronous process of water level and wave through continuous tide generation and wave generation by the wave maker and tide generating device, so as to realize the dynamic coupling simulation of storm surge and wave in the laboratory. Then the physical model test of the typical seawall section was carried out under the dynamic coupling of storm surge and wave as well as at a conventional fixed water level respectively. In the process of test wave overtopping discharge and the damage process of the levee crown and backwall of seawalls were observed and compared, and their damage mechanism was also studied.

关 键 词：sea DIKE storm surge WAVE OVERTOPPING WAVE LEVEE overflowing coupling 

分 类 号：P[天文地球]