Abstract
With the rapid development of offshore wind farms, suction bucket foundation is gaining attention due to installation convenience, cost efficiency, and reusability. Currently, increasing number of offshore wind turbines are built in seismically active areas, the seismic stability of bucket foundation is becoming a major concern, especially in liquefiable soil. By comparing the results of centrifuge shaking table test with solid-fluid coupled dynamic finite difference analysis, the seismic response of suction bucket foundations in liquefiable ground is analyzed. A unified plasticity model for the large post-liquefaction shear deformation of sand is used to provide high fidelity representation of the behavior of saturated sand under seismic loading. The soil-bucket-superstructure dynamic interaction mechanism is investigated, via analysis of the rotation and translation of the bucket foundation and the acceleration and displacement of the superstructure. The results show that excess inclination angle of the bucket foundation and amplified turbine response during the earthquake in the inclined liquefiable foundation should be considered in design.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Asareh, M.A., Schonberg, W., Volz, J.: Effects of seismic and aerodynamic load interaction on structural dynamic response of multi-megawatt utility scale horizontal axis wind turbines. Renewable Energy 86, 49–58 (2016)
Asheghabadi, M.S., Jebeli, A.J.: Seismic behavior of suction Caisson foundations. Int. J. Geotech. Geol. Eng. 13(2), 30–36 (2019)
Bhattacharya, S., Cox, J.A., Lombardi, D., Wood, D.M.: Dynamics of offshore wind turbines supported on two foundations. P I Civil Eng-Geote. 166(2), 159–169 (2013)
Esfeh, P.K., Kaynia, A.M.: Earthquake response of monopiles and Caissons for offshore wind turbines founded in liquefiable soil. Soil Dyn. Earthq. Eng. 136, 106213 (2020)
FD-003.: Design regulations on subgrade and foundation for wind turbine generator system. China Water Power Press, Beijing (2007)
Hesar, M.: Geotechnical design of the Barracuda and Caratinga suction anchors. In: Offshore Technology Conference (2003)
Kaynia, A.M.: Seismic considerations in design of offshore wind turbines. Soil Dyn. Earthq. Eng. 124, 399–407 (2019)
Peire, K., Nonneman, H., Bosschem, E.: Gravity base foundations for the thornton bank offshore wind farm. Terra et Aqua 115(115), 19–29 (2009)
Qu, X.Q., Zhang, Z.T., Hu, J., Wang, R., Zhang, J.M.: Centrifuge shaking table tests on offshore wind turbine bucket foundation in mildly inclined liquefiable seabed. Soil Dyn. Earthq. Eng. 151, 107012 (2021)
Smith, V., Mahmoud, H.: Multihazard assessment of wind turbine towers under simultaneous application of wind, operation, and seismic loads. J. Perform. Constr. Facil. 30(6), 04016043 (2016)
Ueda, K., Uzuoka, R., Iai, S., Okamura, T.: Centrifuge model tests and effective stress analyses of offshore wind turbine systems with a suction bucket foundation subject to seismic load. Soils Found. 60(6), 1546–1569 (2020)
Wang, R., Zhang, J.M., Wang, G.: A unifified plasticity model for large post-liquefaction shear deformation of sand. Comput Geotech. 59, 54–66 (2014)
Wang, X.F., Yang, X., Zeng, X.W.: Seismic centrifuge modelling of suction bucket foundation for offshore wind turbine. Renewable Energy 114, 1013–1022 (2017)
Wen, F.: Developments and characteristics of offshore wind farms in China. Adv. New Renewable Enengy 4(2), 152–158 (2016)
Xia, Z.F., Ye, G.L., Wang, J.H., Ye, B., Zhang, F.: Fully coupled numerical analysis of repeated shake-consolidation process of earth embankment on liquefiable foundation. Soil Dyn. Earthq. Eng. 30(11), 1309–1318 (2010)
Yu, H., Zeng, X.W., Lian, J.J.: Seismic behavior of offshore wind turbine with suction caisson foundation. In: Geo-Congress, pp. 1206–1214 (2014)
Zou, Y.X., Zhang, J.M., Wang, R.: Seismic analysis of stone column improved liquefiable ground using a plasticity model for coarse-grained soil. Comput. Geotech. 125, 103690 (2020)
Acknowledgement
The authors gratefully acknowledge the financial support provided by National Natural Science Foundation of China (51909249) and Zhejiang Provincial Natural Science Foundation (LQ19E090001).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Qu, XQ., Wang, R., Zhang, JM., He, B. (2022). Centrifuge and Numerical Simulation of Offshore Wind Turbine Suction Bucket Foundation Seismic Response in Inclined Liquefiable Ground. In: Wang, L., Zhang, JM., Wang, R. (eds) Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022). PBD-IV 2022. Geotechnical, Geological and Earthquake Engineering, vol 52. Springer, Cham. https://doi.org/10.1007/978-3-031-11898-2_101
Download citation
DOI: https://doi.org/10.1007/978-3-031-11898-2_101
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-11897-5
Online ISBN: 978-3-031-11898-2
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)