Optimized Reliability Based Upgrading of Rubble Mound Breakwaters in a Changing Climate
TLDR
In this article, the authors present an approach on implementing appropriate mitigation measures for the upgrade of rubble mound breakwaters protecting harbors and/or marinas against increasing future marine hazards and related escalating exposure to downtime risks.Abstract:
The present work aims at presenting an approach on implementing appropriate mitigation measures for the upgrade of rubble mound breakwaters protecting harbors and/or marinas against increasing future marine hazards and related escalating exposure to downtime risks. This approach is based on the reliability analysis of the studied structure coupled with economic optimization techniques. It includes the construction of probability distribution functions for all the stochastic variables of the marine climate (waves, storm surges, and sea level rise) for present and future conditions, the suggestion of different mitigation options for upgrading, the construction of a fault tree providing a logical succession of all events that lead to port downtime for each alternative mitigation option, and conclusively, the testing of a large number of possible alternative geometries for each option. A single solution is selected from the total sample of acceptable geometries for each upgrading concept that satisfy a probabilistic constraint in order to minimize the total costs of protection. The upgrading options considered in the present work include the construction or enhancement of a crown wall on the breakwater crest, the addition of the third layer of rocks above the primary armor layer of the breakwater (combined with crest elements), the attachment of a berm on the primary armor layer, and the construction of a detached low-crested structure in front of the breakwater. The proposed methodology is applied to an indicative rubble mound breakwater with an existing superstructure. The construction of a berm on the existing primary armor layer of the studied breakwater (port of Deauville, France), seems to be advantageous in terms of optimized total costs compared to other mitigation options.read more
Citations
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Random seas and design of maritime structures
TL;DR: Theoretical Description of Random Sea Waves Statistical Theory of Irregular Waves Techniques of Random Wave Analysis 2D Computation of Wave Transformation with Random Breaking and Nearshore Currents Statistical Analysis of Extreme Waves Prediction and Control of Beach Deformation Processes.
Introduction to bed, bank and shore protection.
TL;DR: Loads (flow, waves, ships, porous flow), Erosion (flow flow, remainder) Load reduction, stability, protections, construction and maintenance, design as discussed by the authors.
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Design of a rubble mound breakwater under the combined effect of wave heights and water levels, under present and future climate conditions
TL;DR: In this paper, the design of a conventional rubble mound breakwater at the Makran coasts on the southern coast of Iran has been carried out using a commonly applied, as well as a joint probability approach.
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Wave-induced dynamic pressure under rubble mound breakwaters with submerged berm: an experimental and numerical study
TL;DR: In this article, the authors provided an experimental and numerical seabed pressure dataset under rubble mound breakwaters with submerged berms, and the experimental data have been used to assess the reliability of a Computational Fluid Dynamics (CFD) based numerical model.
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Impact of copula model selection on reliability-based design optimization of a rubble mound breakwater
TL;DR: In this paper , the reliability-based design optimization (RBDO) of a rubble mound breakwater has been performed by considering the correlation among significant wave height, wave period and water level, and four different copulas are considered: Independence, the Gaussian, the Drawable Vine dependence, and the Gumbel.
References
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Random seas and design of maritime structures
TL;DR: Theoretical Description of Random Sea Waves Statistical Theory of Irregular Waves Techniques of Random Wave Analysis 2D Computation of Wave Transformation with Random Breaking and Nearshore Currents Statistical Analysis of Extreme Waves Prediction and Control of Beach Deformation Processes.
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