Browse > Article
http://dx.doi.org/10.14481/jkges.2021.22.10.31

Analysis of Long-term Behavior of Bucket Foundation Using Numerical Model  

Park, Jeongseon (Korea Hydro&Nuclear Power CO., LTD., Central Research Institute)
Publication Information
Journal of the Korean GEO-environmental Society / v.22, no.10, 2021 , pp. 31-36 More about this Journal
Abstract
Estimation of accumulated rotational angles and settlements are critical in design of wind turbine foundation. However, there have been few exploring the response of bucket foundation to long-term cyclic loading. We performed a series of three-dimensional finite element analyses of bucket foundations installed in sands. An empirical formulation which captures the stiffness degradation observed in cyclic triaxial tests implemented into the finite element analysis in the form of a user subroutine. Using the stiffness degradation model the accumulated rotation and displacement of bucket foundation were calculated. Additionally, important factors affecting the response under cyclic loading were assessed.
Keywords
Bucket foundation; Cyclic loading; Soil stiffness degradation; Finite element analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Achmus, M., Kuo, Y. S. and Abdel-Rahman, K. (2009), Behavior of monopole foundations under cyclic lateral load, Computers and Geotechnics, Vol. 36, No. 5, pp. 725~735.   DOI
2 Bransby, M. F. and Yun, G. J. (2009), The undrained capacity of skirted strip foundations under combined loading, Geotechnique, Vol. 59, No. 2, pp. 115~125.   DOI
3 Jeong, Y. H., Ko, K. W., Kim, D. S. and Kim, J. H. (2020), Studies on cyclic behavior of tripod suction bucket foundation system supporting offshore wind turbine using centrifuge model test, Wind Energy, Vol. 24, No. 5, pp. 515~529.
4 Park, J. S. (2017), Physical and numerical modeling to predict suction installation process and response of bucket foundations in sands under combined loading, Ph D. dissertation, Hanyang University, pp. 1~189 (In Korean).
5 Park, J., Park, D. and Yoo, J. (2016), Vertical bearing capacity of bucket foundations in sand, Ocean Engineering, Vol. 121, No. 1, pp. 453~461.   DOI
6 Simulia (2010), Abaqus user's manual, Dassault Systems Simulia Corp., pp. 1~882.
7 Nielsen, S. D., Ibsen, L. B. and Nielsen, B. N. (2017), Response of cyclic-loaded bucket foundations in saturated dense sand, Journal of Geotechnical and Geoenvironmental Engineering, Vol. 143, No. 11.
8 Hung, L. C. and Kim, S. R. (2014), Evaluation of undrained bearing capacities of bucket foundations under combined loads, Marine Georesources & Geotechnology, Vol. 32, No. 1, pp. 76~92.   DOI
9 Achmus M., Akdag, C. T. and Thieken, K. (2013), Load-bearing behavior of suction bucket foundations in sand, Applied Ocean Research, Vol. 43, pp. 157~165.   DOI