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3 January 2022 Numerical Study on Compound-Slope Seawalls with Different Types of Protective Facings
Can-Sheng Zeng, Jie-Min Zhan, Wen-Qing Hu
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Abstract

Zeng, C.-S.; Zhan, J.-M., and Hu, W.-Q., 2022. Numerical study on compound-slope seawalls with different types of protective facings. Journal of Coastal Research, 38(1), 182–195. Coconut Creek (Florida), ISSN 0749-0208.

The compound seawall is an important infrastructure to protect the coast effectively against tide and wave impacts. In this paper, a hybrid realizable k/laminar model and a volume of fluid interface capture method were used to study compound-slope seawalls with different types of protective facings. An analytical method was used to separate the incident wave and the reflected wave, and the numerical results for a compound-slope seawall with a hollow-block protective facing structure were verified by experimental results. The monitored wave surface, incident wave, and reflected wave data in the numerical simulation were compared with the experimental results, and the results show that the numerical model can simulate the interaction process of waves and compound-slope seawalls well. Furthermore, a series of numerical simulation studies on compound-slope seawalls under different protective facing structures with different wave heights, wave periods, water depths, and structure slopes was conducted. The results show that the hollow-block protective facings have a significant weakening effect on the reflected wave height, wave run-up, and wave force when the wave is moderate, which is important for the safety of seawall and onshore building structures.

©Coastal Education and Research Foundation, Inc. 2022
Can-Sheng Zeng, Jie-Min Zhan, and Wen-Qing Hu "Numerical Study on Compound-Slope Seawalls with Different Types of Protective Facings," Journal of Coastal Research 38(1), 182-195, (3 January 2022). https://doi.org/10.2112/JCOASTRES-D-21-00013.1
Received: 26 January 2021; Accepted: 26 June 2021; Published: 3 January 2022
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KEYWORDS
Hollow-block protective facings
impact load
reflected wave.
Wave run-up
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