Wave Run-Up and Reflection on a Permeable Sea Wall

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by Mitsuo Takezawa, Nihon Univ, Tokyo, Japan,
Susumu Kubota, Nihon Univ, Tokyo, Japan,
Shintaro Hotta, Nihon Univ, Tokyo, Japan,

Document Type: Proceeding Paper

Part of: Ocean Wave Measurement and Analysis:

Abstract: The swash oscillation on a sloping seawall made of step-shaped concrete blocks, waves and water particle velocity in front of the seawall were measured. It was inferred that incident waves form two-dimensional standing waves with the anti-node in the swash slope. Results of wave separation indicated the individual wave reflection predominantly occurred. Wave reflection ratio from the seawall was similar to the value of natural beach which had a steep beach face. This may be caused by an effect of permeability of the seawall.

Subject Headings: Sea walls | Water waves | Standing waves | Wave reflection | Wave runup | Concrete blocks | Slopes | Wave velocity |

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