Influence of characteristic-soil-property-estimation approach on the response of monopiles for offshore wind turbines SCOPUS

Title
Influence of characteristic-soil-property-estimation approach on the response of monopiles for offshore wind turbines
Author(s)
Andersen, L.V.; Sørensen, J.D.; Kim, S.-B.; Yi, J.-H.; Yoon, G.-L.; Manuel, L.
KIOST Author(s)
Yi, Jin Hak(이진학)Yoon, Gil Lim(윤길림)
Publication Year
2015
Abstract
Different approaches to estimation of the characteristic undrained shear strength of soil are discussed, based on 12 cone penetration tests (CPTs) carried out within a soil volume representative of an offshore monopile foundation. The paper is focused on the statistical treatment of the data, and pile-soil interaction is modelled by the Winkler approach with nonlinear p-y curves for the soil resistance. The 5MW NREL reference wind turbine is employed for load estimation, utilizing the aeroelastic code FAST. The study includes comparison of monopile capacities based on a single CPT as well as multiple CPTs. Comparisons are made between results obtained from a single CPT and those from all the CPTs at the site. The influence of assuming few or many layers in the deterministic soil model is assessed, and different assumptions regarding the statistical distribution of the data are compared. Finally, based on findings of the analyses, guidelines for the estimation of the characteristic soil strengths are proposed. © 2015. The International Society of Offshore and Polar Engineers.
ISSN
2310-3604
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2587
DOI
10.17736/jowe.2015.jcr39
Bibliographic Citation
Journal of Ocean and Wind Energy, v.2, no.3, pp.160 - 167, 2015
Publisher
International Society of Offshore and Polar Engineers
Keywords
Characteristic value; CPT; Foundation design; Monopile; Undrained shear strength; Wind turbine
Type
Article
Language
English
Document Type
Article
Publisher
International Society of Offshore and Polar Engineers
Related Researcher
Research Interests

Ocean Energy-Tidal Current Energy Converter System,Infrastructure Management-Structural Health Monitoring,Offshore Wind,해양에너지-조류발전시스템,시설물 유지관리-구조건전성 평가,해상풍력

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