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Developing new formulae for prediction of mean overtopping discharge at vertical walls

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Abstract

In this paper, a comprehensive nonlinear regression analysis has been conducted on widely known dimensionless parameters associated with the overtopping phenomena as one of the highest priority design criteria in seawall design, using CLASH (Crest Level Assessment of coastal Structures by full-scale monitoring, neural network prediction, and Hazard analysis on permissible wave overtopping) database, as the most viable source in this regard. Accordingly, new formulae have been put forward for calculation of mean overtopping discharge at vertical walls on horizontal as well as sloping foreshore. It has statistically shown that presented formulae have a comparatively better correlation with related CLASH data when compared with the existing ones. Therefore, implementing new formulae will hopefully result in a more reliable design of vertical walls with respect to overtopping discharge performance.

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Notes

  1. Crest Level Assessment of coastal Structures by full scale monitoring, neural network prediction and Hazard analysis on permissible wave overtopping.

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Authors and Affiliations

  1. Department of Civil Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran

    Alireza Sadat Hosseini

  2. Department of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran

    Soheil Radfar & Roozbeh Panahi

Authors
  1. Alireza Sadat Hosseini
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  2. Soheil Radfar
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  3. Roozbeh Panahi
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Corresponding author

Correspondence to Roozbeh Panahi.

Glossary

H m0 deep [m]

Significant wave height from spectral analysis \(= 4\sqrt {m_{0} }\), determined at deep water

T pdeep [s]

Peak period from spectral analysis at deep water

T m−1,0 deep [s]

Mean period either from spectral analysis = m2/m0 or from time domain analysis (zero-downcrossing) at deep water

H m0, toe [m]

Significant wave height from spectral analysis \(= 4\sqrt {m_{0} }\) at the toe of structure

T p toe [s]

Peak period from spectral analysis at the toe of the structure

T m-10, toe [s]

Mean period from spectral analysis at the toe of the structure = m-1/m0

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Hosseini, A.S., Radfar, S. & Panahi, R. Developing new formulae for prediction of mean overtopping discharge at vertical walls. J Mar Sci Technol 22, 414–425 (2017). https://doi.org/10.1007/s00773-016-0421-y

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  • DOI: https://doi.org/10.1007/s00773-016-0421-y

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