모래지반에서 도넛형 석션기초의 관입 성능 평가를 위한 수치해석 기법에 대한 연구 KCI

Title
모래지반에서 도넛형 석션기초의 관입 성능 평가를 위한 수치해석 기법에 대한 연구
Alternative Title
Study on Numerical Analysis for Penetration Performance Evaluation of Doughnut-Type Suction Foundation in Sand Layer
Author(s)
Park, Hae Yong; Kwon, O Soon; Insuk Han; Kang, Hyoun
KIOST Author(s)
Park, Hae Yong(박해용)Kwon, O Soon(권오순)Kang, Hyoun(강현)
Alternative Author(s)
박해용; 권오순; 강현
Publication Year
2022-12
Abstract
It is difficult to control differential settlement and long-term settlement on soft ground with the template used in the pre-filing method of offshore wind power. In this study, the template adopted a suction foundation with high utility on soft ground. To analyze the penetration performance of the doughnut-type suction foundation, step-by-step numerical analysis was applied by calculating the minimum suction pressure needed for ground penetration at that depth. Scale model tests were performed and compared with the numerical analysis results. The ratio of the inside diameter compared to the outside diameter is higher, and penetration by suction was more advantageous than push-in load penetration. The step-by-step numerical analysis method showed an error within 2 % compared to the model tests, so the numerical analysis method confirmed results that the penetration performance of the doughnut-type suction foundation is valid.
ISSN
2093-5099
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/43669
DOI
10.33519/kwea.2022.13.4.007
Bibliographic Citation
풍력에너지저널, v.13, no.4, pp.70 - 79, 2022
Publisher
한국풍력에너지학회
Keywords
도넛형 석션기초; 관입 성능; 간극수압; 수치해석; 모형실험; Doughnut type suction foundation; Penetration performance; Pore pressure; Numerical analysis; Model test
Type
Article
Language
Korean
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