Journal
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
Volume 88, Issue -, Pages 16-36Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2018.02.005
Keywords
Offshore foundations; Offshore wind energy convertors; Offshore wind turbines; Structure-soil interaction
Funding
- New & Renewable Energy Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant - Korean Government Ministry of Knowledge Economy [20143010024330]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20143010024330] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper reviews foundations for offshore wind energy convertors considering the significant growth of offshore wind energy since the early 2000s. The characteristics of various foundation types (i.e., gravity, pile, suction caisson, and float type) and the current status of field application are discussed. Moreover, the mechanical characteristics of soil are described in the sense that these characteristics including modulus, strength, damping, and modulus degradation of soil play critical roles for the design of offshore foundations. By using these mechanical properties of soil, theoretical studies to consider structure-soil interaction are classified (into equivalent spring models, distributed spring models, and continuous element models) and explained. Field and laboratory experiments on the response of structure embedded in soil to static and dynamic loads are discussed. Based on the review of previous studies, directions for future research and study on offshore wind turbine are suggested.
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