Evaluation of force exerted by tetrapods displaced by tsunami on caisson breakwater return wall

Go Hamano; Hidenori Ishii; Kotaro Iimura; Tomoyuki Takabatake; Jacob Stolle; Miguel Esteban; Tomoya Shibayama

doi:10.1080/21664250.2020.1723194

Evaluation of force exerted by tetrapods displaced by tsunami on caisson breakwater return wall

Go Hamano, Hidenori Ishii, Kotaro Iimura, Tomoyuki Takabatake, Jacob Stolle, Miguel Esteban^*, Tomoya Shibayama

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Tsunamis can cause large damage to breakwaters and other protection structures placed along the coastline. The strong flows generated by such waves can move the armor units of composite breakwaters, leading to large impact forces on the caissons behind them. In the present work laboratory experiments were carried out in a flume to determine the forces that can result from such impacts. Then, an empirical equation that would allow the estimation of these forces was proposed, with the aim of facilitating the construction of returning walls and parapets situated on top of caissons.

Original language	English
Pages (from-to)	170-181
Number of pages	12
Journal	Coastal Engineering Journal
Volume	62
Issue number	2
DOIs	https://doi.org/10.1080/21664250.2020.1723194
Publication status	Published - 2020 Apr 2

Keywords

Tsunami
composite breakwater
impact forces
return wall
tetrapod

ASJC Scopus subject areas

Civil and Structural Engineering
Modelling and Simulation
Ocean Engineering

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10.1080/21664250.2020.1723194

Cite this

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title = "Evaluation of force exerted by tetrapods displaced by tsunami on caisson breakwater return wall",

abstract = "Tsunamis can cause large damage to breakwaters and other protection structures placed along the coastline. The strong flows generated by such waves can move the armor units of composite breakwaters, leading to large impact forces on the caissons behind them. In the present work laboratory experiments were carried out in a flume to determine the forces that can result from such impacts. Then, an empirical equation that would allow the estimation of these forces was proposed, with the aim of facilitating the construction of returning walls and parapets situated on top of caissons.",

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AU - Hamano, Go

AU - Ishii, Hidenori

AU - Iimura, Kotaro

AU - Takabatake, Tomoyuki

AU - Stolle, Jacob

AU - Esteban, Miguel

AU - Shibayama, Tomoya

N1 - Funding Information: The present work was performed as a part of activities of Research Institute of Sustainable Future Society, Waseda Research Institute for Science and Engineering, Waseda University. Penta-Ocean?s financial support for this project is kindly appreciated. Publisher Copyright: © 2020, © 2020 Japan Society of Civil Engineers.

PY - 2020/4/2

Y1 - 2020/4/2

N2 - Tsunamis can cause large damage to breakwaters and other protection structures placed along the coastline. The strong flows generated by such waves can move the armor units of composite breakwaters, leading to large impact forces on the caissons behind them. In the present work laboratory experiments were carried out in a flume to determine the forces that can result from such impacts. Then, an empirical equation that would allow the estimation of these forces was proposed, with the aim of facilitating the construction of returning walls and parapets situated on top of caissons.

AB - Tsunamis can cause large damage to breakwaters and other protection structures placed along the coastline. The strong flows generated by such waves can move the armor units of composite breakwaters, leading to large impact forces on the caissons behind them. In the present work laboratory experiments were carried out in a flume to determine the forces that can result from such impacts. Then, an empirical equation that would allow the estimation of these forces was proposed, with the aim of facilitating the construction of returning walls and parapets situated on top of caissons.

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Evaluation of force exerted by tetrapods displaced by tsunami on caisson breakwater return wall

Abstract

Keywords

ASJC Scopus subject areas

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