Probabilistic Comparison of Static and Dynamic Failure Criteria of Scour Protections

• Type: Article in International Scientific Journal
• Date: 2019-11-11

Authors

Tiago Ferradosa (Author) FEUP; Francisco Taveira Pinto (Author) FEUP; Paulo Rosa Santos (Author) FEUP; João Chambel (Author) Other

Journal

Title: Journal of Marine Science and Engineering

Vol. 7 No. 2

Pages: 1-400

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scopus - 4 Citations

Scientific classification

CORDIS: Technological sciences

FOS: Engineering and technology

Other information

Authenticus ID: P-00R-EJ5

DOI: 10.3390/jmse7110400

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 16