Article Details

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

Oleh   Quanhe Ju [-]
Kontributor / Dosen Pembimbing : Shuguang Liu, Wenrui Huang, Guihui Zhong4
Jenis Koleksi : Jurnal elektronik
Penerbit : Lain-lain
Fakultas :
Subjek : Engineering & allied operations
Kata Kunci : Probability distribution; Overtopping; Berm; Weibull distribution; Shape factor; Scale factor
Sumber : Journal of Waterway, Port, Coastal, and Ocean Engineering / Volume 145 Issue 4 - July 2019
Staf Input/Edit : Yanti Sri Rahayu, S.Sos   Ena Sukmana
File : 2 file
Tanggal Input : 2019-04-15 16:43:19

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2019 EJRNL PP QUANHE JU 1

Akses : Terbatas
» ITB

Generic placeholder image
2019 EJRNL PP QUANHE JU 1

Akses : Terbatas
» ITB


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 knowledge 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.