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Open AccessArticle

Probabilistic Comparison of Static and Dynamic Failure Criteria of Scour Protections

1
Marine Energy Research Group, CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, 4400-465 Porto, Portugal
2
Hydraulics, Water Resources and Environmental Division, Department of Civil Engineering, Faculty of Engineering of the University of Porto, 4400-465 Porto, Portugal
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(11), 400; https://doi.org/10.3390/jmse7110400
Received: 10 September 2019 / Revised: 4 November 2019 / Accepted: 5 November 2019 / Published: 7 November 2019
(This article belongs to the Section Ocean Engineering)
The present paper provides a reliability assessment of scour protections applicable to both the static and dynamic stability design. As a case study, Horns Rev 3 hindcast data is used to simulate different failure criteria for an exemplary scour protection suitable for an offshore monopile foundation. The results show that the probability of failure is influenced by several factors, namely the wave friction factor, the definition of the acceptable damage number or the formulations used to calculate the bed shear-stress. The reliability assessment also indicates that annual probabilities of failure, associated to each criterion, might be comparable with the values presented in reliability standards for marine structures. Based on the results, this paper highlights future recommendations to improve the reliability-based design and analysis of scour protections for offshore foundations. View Full-Text
Keywords: scour protection; offshore wind foundations; reliability; probability of failure scour protection; offshore wind foundations; reliability; probability of failure
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MDPI and ACS Style

Fazeres-Ferradosa, T.; Taveira-Pinto, F.; Rosa-Santos, P.; Chambel, J. Probabilistic Comparison of Static and Dynamic Failure Criteria of Scour Protections. J. Mar. Sci. Eng. 2019, 7, 400. https://doi.org/10.3390/jmse7110400

AMA Style

Fazeres-Ferradosa T, Taveira-Pinto F, Rosa-Santos P, Chambel J. Probabilistic Comparison of Static and Dynamic Failure Criteria of Scour Protections. Journal of Marine Science and Engineering. 2019; 7(11):400. https://doi.org/10.3390/jmse7110400

Chicago/Turabian Style

Fazeres-Ferradosa, Tiago; Taveira-Pinto, Francisco; Rosa-Santos, Paulo; Chambel, João. 2019. "Probabilistic Comparison of Static and Dynamic Failure Criteria of Scour Protections" J. Mar. Sci. Eng. 7, no. 11: 400. https://doi.org/10.3390/jmse7110400

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