지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.12
- 수록면
- 438 - 448 (11page)
이용수
초록· 키워드
오류제보하기
The design of a jack-up leg foundation as a fixed substructure for offshore wind turbines requires a thorough investigation of the effects of the detailed spudcan geometry, leg type, and soil condition on the penetration resistance. Therefore, this study evaluated the effect of the bottom-shape inverted cone angle of the spudcan on penetration resistance in uniform clay using large-deformation finite element analyses. The soil was idealized as a homogeneous, elastic, perfectly plastic material obeying the Mohr–Coulomb yield criterion. A numerical analysis was performed using the Coupled Eulerian–Lagrangian technique. A complete parametric study was performed to quantify the influence of undrained shear strength, cone angle, and roughness. The results showed that the cone angle and roughness affected the penetration resistance, and a higher cone angle resulted in higher penetration resistance. Moreover, the leg type and soil backflow affected the ultimate bearing capacity factor. As a foundation for offshore wind turbines, this study proposed that a spudcan connected to a cylindrical pile leg with cone tip angles greater than 150° and 120° can be used in stiff and soft clays, respectively, as a substitute for a pile foundation.
목차
ABSTRACT
1. Introduction
2. Methodology
3. Validation
4. Results and Discussion
5. Conclusions
References
참고문헌 (57)
참고문헌 신청
ABS. (2017). Guidance notes on geotechnical performance of spudcan foundations.
Castleberry, J. P., & Prebaharan, N. (1985). Clay crusts of the Sunda Shelf-a hazard to jack-up operations. Institution of Engineers Malaysia.
Chakraborty, M., & Kumar, J. (2015). Bearing capacity factors for a conical footing using lower- and upper-bound finite elements limit analysis. Canadian Geotechnical Journal, 52(12), 2134–2140. https://doi.org/10.1139/cgj-2014-0507
Chan, N. H. C., Paisley, J. M., & Holloway, G. L. (2008). Characterization of soils affected by rig emplacement and Swiss cheese operations—Natuna Sea, Indonesia, a case study. Proceedings of the 2nd jack-up Asia conference and exhibition, Singapore, 17–18.
Chen, Z., Tho, K. K., Leung, C. F., & Chow, Y. K. (2013). Influence of overburden pressure and soil rigidity on uplift behavior of square plate anchor in uniform clay. Computers and Geotechnics, 52, 71–81. https://doi.org/10.1016/j.compgeo.2013.04.002
Castleberry, J. P., & Prebaharan, N. (1985). Clay crusts of the Sunda Shelf-a hazard to jack-up operations. Institution of Engineers Malaysia.
Chakraborty, M., & Kumar, J. (2015). Bearing capacity factors for a conical footing using lower- and upper-bound finite elements limit analysis. Canadian Geotechnical Journal, 52(12), 2134–2140. https://doi.org/10.1139/cgj-2014-0507
Chan, N. H. C., Paisley, J. M., & Holloway, G. L. (2008). Characterization of soils affected by rig emplacement and Swiss cheese operations—Natuna Sea, Indonesia, a case study. Proceedings of the 2nd jack-up Asia conference and exhibition, Singapore, 17–18.
Chen, Z., Tho, K. K., Leung, C. F., & Chow, Y. K. (2013). Influence of overburden pressure and soil rigidity on uplift behavior of square plate anchor in uniform clay. Computers and Geotechnics, 52, 71–81. https://doi.org/10.1016/j.compgeo.2013.04.002
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