Analysis of the dynamic response of caisson breakwaters

“…On this ground, simplified models for the dynamic behaviour of caisson breakwaters have been developed within the framework of the PROVERBS (PRObabilistic design tools for VERtical BreakwaterS) research project (see, among others, Oumeraci and Kortenhaus, 1994;Oumeraci et al, 1992;Klammer et al, 1994).…”

Section: Existing Models For Dynamics Of Caisson Breakwatersmentioning

confidence: 99%

Dynamic response and sliding distance of composite breakwaters under breaking and non-breaking wave attack

Cuomo¹,

Lupoi²,

Shimosako³

et al. 2011

Coastal Engineering

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a b s t r a c tOver the last 15 years improved awareness of wave impact induced failures has focused attention on the need to account for the dynamic response of maritime structures to wave impact load. In this work a non-linear model is introduced that allows evaluating the effective design load and the potential sliding of caisson breakwater subject to both pulsating and impulsive wave loads. The caisson dynamics is modelled using a time-step numerical method to solve numerically the equations of motion for a rigid body founded on multiple non-linear springs having both horizontal and vertical stiffness. The model is first shown to correctly describe the dynamics of caisson breakwaters subject to wave attack, including nonlinear features of wavestructure-soil interaction. Predictions of sliding distances by the new method are then compared with measurements from physical model tests, showing very good agreement with observations. The model succeeds in describing the physics that stands behind the process and is fast, accurate and flexible enough to be suitable for performance design of caisson breakwaters.

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“…Most of the efforts have been directed towards assessing the effects of waves on rubble-mound breakwaters and the forces exerted on the upright section of vertical breakwaters. The effects of dynamic response of vertical breakwaters subject to breaking wave loads have been investigated by many scholars, e.g., Oumeraci and Kortenhaus (1994), Goda (1994), Lamberti and Martinell (1998), Ulker et al (2010), Cuomo et al (2011).…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation on the stability of foundation of composite vertical breakwaters

Torabi

Shafieefar

2015

J. Marine. Sci. Appl.

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A series of 2D model tests were conducted to assess the foundation stability of composite vertical breakwaters. In this paper, the results from the experimental study are presented conjointly with a formula to estimate the stability number of foundation, which is the most important parameter for evaluation of foundation stability of such structures. The influences of wave height, wave period and the berm width on the stability of composite breakwaters with different armor stone sizes were investigated. Forty-five tests were performed to cover the influences of these parameters. According to the present research, berm width is a significant parameter concerning erosion of armor foundation. As the berm width increases, the amount of berm erosion decreases. Comparisons are made between results of present study and the estimated stability number proposed by Kimura et al. (1994), which is extension of Tanimoto formula. Results show that the later formula underestimates the stability number. However, by applying an enhancement factor about 1.7 meters to Kimura et al. formula, results correlated with the present experimental results..

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Analysis of the dynamic response of caisson breakwaters

Cited by 72 publications

References 2 publications

Wave-in-deck loads on exposed jetties

Wave-in-deck loads on exposed jetties

Dynamic response and sliding distance of composite breakwaters under breaking and non-breaking wave attack

An experimental investigation on the stability of foundation of composite vertical breakwaters

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