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A Study on p-y Curves for Nearshore Seabed of Jeju Island  

Jang, Young-Eun (과학기술연합대학원대학교)
Lee, Joonyong (한국건설기술연구원 Geo인프라연구실)
Cho, Samdeok (한국건설기술연구원 Geo인프라연구실)
Yoo, Dong-Woo ((주)동호)
Choi, Changho (한국건설기술연구원 Geo인프라연구실)
Publication Information
Journal of the Korean GEO-environmental Society / v.13, no.6, 2012 , pp. 73-81 More about this Journal
Abstract
Safety issue for offshore wind-turbine foundation becomes a crucial factor as offshore wind turbines have been scaled up. Correspondingly, there is a demand to understand the effect of soil-structure interaction on to system behavior in geotechnical engineering point of view. The p-y curve method researched in past few decades is one of the most appropriate methodology to analyze the problem. In this study, recently proposed p-y curve models for various rocks are calibrated to analyze the engineering characteristics of seabed of Jeju Island where it is known to be most suitable area for offshore wind energy farm. Step by step calibration process for p-y models is presented. Analysis results show that subgrade reaction generally increases as closer to seabed. It is also shown that the behavioral characteristics of foundation reflect well rock properties in terms of resultant moment, shear force, etc.
Keywords
Offshore wind turbine foundation; Soil-foundation interaction; Lateral soil reaction; p-y curve;
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