Large Scale Experimental Study of the Scour Protection Damage Around a Monopile Foundation Under Combined Wave and Current Conditions

• Type: Article in International Scientific Journal
• Date: 2020-06-08

Authors

Minghao Wu (Author) Other; Leen De Vos (Author) Other; Carlos Arboleda Chavez (Author) Other; Vasiliki Stratigaki (Author) Other; Tiago Ferradosa (Author) FEUP; Paulo Rosa Santos (Author) FEUP; Francisco Taveira Pinto (Author) FEUP; Peter Troch (Author) Other

Journal

Title: Journal of Marine Science and Engineering

Vol. 8

Pages: 1-417

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scopus - 6 Citations

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: P-00S-GPT

DOI: 10.3390/jmse8060417

Abstract (EN): This paper presents a series of large-scale wave flume experiments on the scour protection damage around a monopile under combined waves and current conditions with model scales of 1:16.67 and 1:8.33. The main objective is to compare the damage data obtained from these large-scale models with existing monopile scour protection design approaches, which were proposed based on small scale wave flume experiments, and to study the applicability of the existing approaches. The static stability (onset of motion and bed shear stress) and the dynamic stability (three-dimensional damage numbers) of the scour protection are investigated. Both results show that the existing design approaches can be conservative when applied to large scale models, which highlights the need of further investigations on scale and model effects. In addition, this paper also analyses the scour protection damage depth. It is observed that damage depths of the scour protection layer under low Keulegan-Carpenter number (KC) conditions are smaller than predictions. The study provides valuable large scale experimental data for future research on the monopile scour protection design.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 30