Simulation of dynamic response of offshore wind turbine with group-pile foundation using centrifuge tests

Xuefei Wang, Xiangwu Zeng, Hao Yu, Jijian Lian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Liquefaction of soil resulting from earthquakes can lead to the failure of structures due to the significant reduction of the foundation bearing capacity. Offshore wind foundations are the type of structures that may be susceptible to earthquake damage. Gravity and Mono-pile foundations are typically adopted for offshore wind turbines in past projects. This study is focused on a new type of group-pile foundation with four legs. A group of centrifuge tests was performed to evaluate the seismic stability of this type of foundation. Acceleration, pore water pressure, settlement, and lateral displacement were recorded to analyze the seismic response of both the upper structure and foundation. Comparisons with test data of other types of foundations were made. Data analysis and comparison shows that this type of foundation has some advantages in improving seismic stability.

Original languageEnglish
Title of host publicationIFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015
EditorsJ. Brian Anderson, Magued Iskander, Muhannad T. Suleiman, Debra F. Laefer
Pages1781-1790
Number of pages10
ISBN (Electronic)9780784479087
DOIs
StatePublished - 2015
EventInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015 - San Antonio, United States
Duration: 17 Mar 201521 Mar 2015

Publication series

NameGeotechnical Special Publication
VolumeGSP 256
ISSN (Print)0895-0563

Conference

ConferenceInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015
Country/TerritoryUnited States
CitySan Antonio
Period17/03/1521/03/15

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