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논문 기본 정보

자료유형
학술저널
저자정보
Junho Lee (Texas A&M University) Jong-Suk Jung (Land & Housing Institute) Young-Jong Sim (Land & Housing Institute) Yong-Boo Park (Land & Housing Institute)
저널정보
LH토지주택연구원 토지주택연구 LHI 저널 제40호
발행연도
2020.7
수록면
87 - 94 (8page)

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초록· 키워드

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Offshore renewable energy resources are attractive alternatives in addressing the nation’s clean energy policies because of the high demand for electricity in the coastal region. As a large portion of potential resources is in deep and farther water, economically competitive floating systems have been developed. Despite the advancement of floating technologies, the high capital cost remains a primary barrier to go ahead offshore renewable energy projects. The dynamically installed piles (DIPs) have been considered one of the most economical pile concepts due to their simple installation method, resulting in cost and time-saving. Nevertheless, applications to real fields are limited because of uncertainties and underestimated load capacity. Thus, this study suggests the appropriate analytical approach to estimate the inclined load capacity of the DIPs by using the upper bound plastic limit analysis (PLA) method. The validity of the PLA under several conditions is demonstrated through comparison to the finite element (FE) method. The PLA was performed to understand how flukes, soil profiles, and load inclinations can affect the inclined load capacity and to provide reliable evaluations of the total resistance of the DIPs. The studies show that PLA can be a useful framework for evaluating the inclined load capacity of the DIPs under undrained conditions.

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Abstract
1. Introduction
2. Modifications of PLA for DIPs
3. Parametric Study
4. Analyses and Results
5. Concluding Remarks
References

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