해상풍력 석션버켓 기초의 기울기 제어 모형실험 = Model Tests for Tilting Control of Suction Bucket Foundation for Offshore Wind Turbine

다국어 초록 (Multilingual Abstract)

This paper presents an experimental result of tilting control for a suction bucket foundation consisting of internal cells. The tilting control was implemented by separately controlling pressure difference between each cell. The 1/100 scale model was used and installed in sand. The model was made of acrylic, and was designed to observe the insides of the cells the during the test. A series of tilting control tests for the model foundation was carried out with multiple combinations of positive and/or negative pressure applied to each cell. It was found that the tilting control enabled suction bucket foundation to be repositioned over 1° during installation, and 0.25° during operation. Sand boiling was observed inside the cells in some cases, concluding that methods mitigating sand boiling should be adopted.

국문 초록 (Abstract)

본 연구는 석션버켓 기초의 기울기 제어에 대한 모형실험으로 단일형 석션버켓 기초 내부에 여러 개의 격실을 두고 각 격실 내부 압력을 독립적으로 조절하여 모형 석션버켓 기초의 기울기를 제어하는 실험을 수행하였다. 모형의 크기는 실제크기의 1/100로 하였고 모래지반에서 수행되었다. 모형은 아크릴로 제작하였으며 실험 중 내부격실의 변화를 육안으로 관찰할 수 있도록 하였다. 각 격실별로 정압 및 부압을 다양하게 조합하여 모형기초의 기울기 제어 실험을 수행하였다. 실험결과 시공중에서 는 1°이상의 기울기 제어가 가능하였으며 운용중에는 0.25°의 기울기 제어가 가능한 것으로 나타났다. 일부 case에서 격실 내에서 보일링이 관찰되어 보일링 저감대책이 필요할 것으로 사료된다.

목차 (Table of Contents)

• Abstract
• 요지
• 1. 서론
• 2. 실험장비 및 방법
• 3. 실험결과 및 토의
• 4. 결론
• References

참고문헌 (Reference)

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