본문 바로가기
KERD
논문KCI 등재

기하학적 방법을 이용한 부유식 해상풍력 석션앵커의 수직도와 회전오차에 따른 인발지지력 변화

Variation in the Pullout Capacity according to the Tilt and Misorientation of a Floating Offshore Wind Turbine Suction Anchor Using Geometric Method

0

조회

0

다운로드

0

인용

0

참고문헌

키워드

주제분류토목공학

초록

본 연구에서는 기하학적 방법을 통한 계산을 수행하여 석션앵커의 수직도와 회전오차의 복합작용이 인발지지력에 미치는 영향을 알아보았다. 수직도와 회전오차의 복합영향을 고려한 경우 단순 비례적으로 인발지지력에영향을 미치지는 않고 서로 상대적으로 영향을 미치는 것으로 나타났다. 수직도와 회전오차를 복합적으로 고려한기준은 기존문헌이나 DNV 기준에 제시되어 있지 않아 본 연구 결과를 종합하여 인발지지력의 감소폭 3%내를 제안하였다.

Abstract

In this study, geometric calculation was performed to investigate the influence of the combined effect of tilt and misorientation on the pullout capacity of suction anchor used in floating offshore wind turbine. When considering the combined effect of tilt and misorientation, it was observed that they do not proportionally affect the pullout capacity but rather influence each other relatively. Criteria considering both tilt and misorientation are not provided in existing literature or DNV recommendation. Therefore, based on the comprehensive results of this study, a proposed decrease in pullout capacity within 3% is suggested.

참고문헌 (11)

  1. Ahmed, S. S., "Numerical analysis of inclined uplift capacity of suction caisson in sand", Int. J. Offshore Polar Eng, 25, pp.145~155 (2015)
  2. Ahn, J., "Finite element analysis of the holding capacity of shallow suction caisson anchors", Georesources Geotechnol, 33, pp.33~44 (2015)
  3. Cheng, L., "Failure envelope of suction caisson anchors subjected to combined loadings in sand", Appl. Ocean Res, 114, pp.102801~ (2021)
  4. Colliat, J. L., "Design and installation of suction anchor piles at soft clay site", Waterway, Port, Coastal and Ocean Eng, 124, pp.179~188 (1998)
  5. DNV, "Geotechnical design and installation of suction anchors in clay. DNVGL Recommended Practice RP-E303", ~ (2021)
  6. Fu, D., "Effects of tension gap on the holding capacity of suction anchors", Mar. Struct., 69, pp.102679~ (2020)
  7. Saviano, A., "Effects of misalignment on the undrained HV capacity of suction anchors in clay", Ocean Eng, 133, pp.89~106 (2017)
  8. Sparrevik, P, "Suction pile technology and installation in deep waters", Offshore Technology Conf, 14241, pp.1~9 (2002)
  9. Sparrevik, P., "Suction anchor design, installation and monitoring(Part 1)", Geotechnical Engineering, 33(5), pp.25~33 (2017)
  10. Suroor, H., "Effect of torsion on suction piles for subsea and mooring applications", Proceedings of the 3rd International Symposium on Frontiers in Offshore Geotechnics. ISFOG III, pp.325~ (2015)
  11. Zhang, M. -H., "Numerical investigation on the pull-out capacity of suction anchors in sand considering torsional and mooring line effects", Computers and Geotechnics, 160, pp.105524~ (2023)

관련 논문AI추천

이 간행물의 다른 논문 (2건)