Laboratory Study of the Spatial Distribution of Extreme Overtopping Events at Vertical Structures

2018 5th International Conference on Coastal and Ocean Engineering

Dong, S.^1 ; Pearson, J.M.^1

School of Engineering, University of Warwick, Coventry

CV4 7AL, United Kingdom^1

关键词: Exponential equations;    Laboratory studies;    Overtopping events;    Overtopping waves;    Physical model experiments;    Research studies;    Spatial measurements;    Vertical structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/171/1/012013/pdf
DOI  :  10.1088/1755-1315/171/1/012013

来源: IOP

【 摘 要 】

Two-dimensional physical model experiments were conducted on a plain vertical seawall with a 1:20 sloping foreshore. Based on previous research, exponential equations were improved to describe spatial measurements for both impulsive and non-impulsive conditions. Comparisons were made between the spatial distributions from previous research studies, and compared to results of this study. It was observed that overtopping water generally distributes closer to seawall than previous predictions. 90% of overtopping was found generally to land within the distance of 0.04 wave-length under impulsive conditions, and similar results were observed in non-impulsive cases. A comparison between the spatial distribution of extreme events and total overtopping volume are discussed. Exponential equations are improved for fitting the distribution of extreme overtopping waves.