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原文传递 Berm Effects on the Probability Distribution of Individual Wave Overtopping Discharge over a Low-Crested Sea Dike

题名：	Berm Effects on the Probability Distribution of Individual Wave Overtopping Discharge over a Low-Crested Sea Dike
正文语种：	英文
作者：	Quanhe Ju1; Shuguang Liu2; Wenrui Huang3; Guihui Zhong4
作者单位：	1Ph.D. Research Associate, Dept. of Hydraulic Engineering, Tongji Univ., No. 1239 Siping Rd., Shanghai 200092, China. 2Professor, Dept. of Hydraulic Engineering, Tongji Univ., No. 1239 Siping Rd., Shanghai 200092, China (corresponding author). 3Professor, FAMU-FSU College of Engineering, Florida State Univ.,Tallahassee, FL 32310; Adjunct Professor, Tongji Univ., No. 1239 Siping Rd., Shanghai 200092, China. 4Associate Professor, Dept. of Hydraulic Engineering, Tongji Univ., No. 1239 Siping Rd, Shanghai 200092, China.
关键词：	Probability distribution; Overtopping; Berm; Weibull distribution; Shape factor; Scale factor
摘要：	Existing studies on the distribution of individual wave overtopping over sea dikes have not taken the effects of the berm into consideration. In this study, a series of physical experiments have been conducted on smooth sea dikes with intermediate berm and low-crested slopes, aiming to gain the nowledge of the berm effects on the probability of wave overtopping Pow and the probability distribution of individual wave overtopping (characterized by a shape factor b and a scale factor a, which are related to the probability of wave overtopping Pow). Two prediction equations have been derived based on the new experiment data to account for the reduction effects of the berm on the parameters Pow and b. In both equations, the relative berm length appears to be more effective in reducing the two parameters in contrast to the relative water depth on the berm, and both parameters decrease with an increase in the relative berm length and a decrease in the relative water depth on the berm in an exponential manner. The equations give an insight into the influence of the berm on the probability distribution of individual wave overtopping and provide good predictions of the berm effects.
出版年：	2019
期刊名称：	Journal of Waterway, Port, Coastal, and Ocean Engineering
卷：	145
期：	4
页码：	1-12