Seismic Behavior of Suction Caisson Foundations
Increasing population growth requires more sustainable development of energy. This non-contaminated energy has an inexhaustible energy source. One of the vital parameters in such structures is the choice of foundation type. Suction caissons are now used extensively worldwide for offshore wind turbine. Considering the presence of a number of offshore wind farms in earthquake areas, the study of the seismic behavior of suction caisson is necessary for better design. In this paper, the results obtained from three suction caisson models with different diameter (D) and skirt length (L) in saturated sand were compared with centrifuge test results. All models are analyzed using 3D finite element (FE) method taking account of elasto-plastic Mohr–Coulomb constitutive model for soil which is available in the ABAQUS library. The earthquake load applied to the base of models with a maximum acceleration of 0.65g. The results showed that numerical method is in relative good agreement with centrifuge results. The settlement and rotation of foundation decrease by increasing the skirt length and foundation diameter. The sand soil outside the caisson is prone to liquefaction due to its low confinement.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.2571841Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 468
 M. Currie, M. Saafi, C. Tachtatzis and F. Quail, “Structural integrity monitoring of onshore wind turbine concrete foundations”, Renew. Energy, vol. 83, 2015, pp. 1131e1138.
 C. Horgan, “Using energy payback time to optimise onshore and offshore wind turbine foundations”, Renew. Energy, vol. 53, 2013, pp. 287e298.
 M. Berndt, Influence of concrete mix design on CO 2 emissions for large wind turbine foundations, Renew. Energy 83 (2015) 608e614.
 J. Kaldellis, D. Apostolou, M. Kapsali and E. Kondili, 2016, “Environmental and social footprint of offshore wind energy”, Comp. Onshore Count. Renew. Energy, vol. 92, 2016, pp. 543–556.
 N. Hadžić, H. Kozmar and M. Tomić, “Offshore renewable energy in the Adriatic Sea with respect to the Croatian 2020 energy strategy”. Renew. Sustain. Energy Rev, vol. 40, 2014, pp. 597–607.
 W. Shi, H. Park, J. Han, S. Na and C. Kim, “ A study on the effect of different modeling parameters on the dynamic response of a jacket-type offshore wind turbine in the Korean Southwest Sea”, Renew. Energy, vol. 58, 2013, pp. 50–59.
 C. Perez-Collazo, D. Greaves and G. Iglesias, “A review of combined wave and offshore wind energy”, Renew. Sustain. Energy Rev, vol. 42, 2015, pp. 141–153.
 W. Guo, J. Chu. “Experimental Study of Installation of Concrete Suction Caisson in Clay”, IFCEE 2015 © ASCE, 2015, pp. 784–791.
 M. Tran,” Installation of suction caissons in dense sand and the influence of silt and cemented layers”, PhD thesis, The University of Sydney, Sydney, NSW, Australia, 2005.
 M. Achmus, C. T. Akdag and K. Thieken, “Load-bearing behavior of suction bucket foundations in sand.” Applied Ocean Research, vol. 43, 2013, pp. 157–165.
 A. Cox. James and S. Bhattacharya, “Serviceability of suction caisson founded offshore structures.” Geotechnical Engineering, vol. 170, 2017 Issue GE3, pp. 273–274.
 Dong-Joon Kim, Yun Wook Choo, Jae-Hyun Kim, Surin Kim and Dong-Soo Kim. “Investigation of Monotonic and Cyclic Behavior of Tripod Suction Bucket Foundations for Offshore Wind Towers Using Centrifuge Modeling.” J. Geotech. Geoenviron. Eng., vol. 140(5), 2014, pp. 04014008.
 C. Latini, V. Zania. “Dynamic lateral response of suction caissons.” Soil Dynamics and Earthquake Engineering, vol. 100, 2017, pp. 59–71.
 B. Ukritchon, S. Keawsawasvong. “Undrained pullout capacity of cylindrical suction caissons by finite element limit analysis.” Computers and Geotechnics, vol. 80, 2016, pp. 301–311.
 V. Negro, J.-S. L_opez-Guti_errez, M. D. Esteban and C. Matutano, “Uncertainties in the design of support structures and foundations for offshore wind turbines”, Renew. Energy, vol. 63, 2014, pp. 125e132.
 D. H. Kim, S. G. Lee and I. K. Lee, “Seismic fragility analysis of 5 MW offshore wind turbine”, Renew. Energy, vol. 65, 2014, pp. 250e256.
 ABAQUS. “Theory and analysis user's manual”, version 6.14. Providence: Dassault Systèmes SIMULIA, 2016.
 X. Wang, X. Yang and X. Zeng, “Seismic centrifuge modelling of suction bucket foundation for offshore wind turbine”, Renewable Energy, vol. 114, 2017, pp. 1013e1022.
 M. Saleh Asheghabadi and H. Matinmanesh, “Finite Element Seismic Analysis of Cylindrical Tunnel in Sandy Soils with Consideration of Soil-Tunnel Interaction”, Procedia Engineering, vol. 14, 2011, pp. 3162–3169.
 H. Matin Manesh and M. Saleh Asheghabadi, “Seismic Analysis on Soil-Structure Interaction of Buildings Over Sandy Soil”, The Twelfth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-12), Hong Kong Special Administrative Region, China, 2011, pp. 24-26.
 Hao Yu, X. Zeng, and J. Lian, “Seismic Behavior of Offshore Wind Turbine with Suction Caisson Foundation”, Geo-Congress 2014 Technical Papers, GSP 234 © ASCE 2014.
 X. Wang, X. Zeng, M. ASCE, Hao Yu, and Haijun Wang, “Centrifuge Modeling of Offshore Wind Turbine with Bucket Foundation under Earthquake Loading”, IFCEE 2015 © ASCE 2015.
 H. Yu, X. Zeng, B. Li, J. Lian, “Centrifuge modeling of offshore wind foundations under earthquake loading”, Soil Dyn. Earthq. Eng., vol. 77, 2015, pp. 402e415.
 R. S. Kourkoulis, P. C. Lekkakis, F. M. Gelagoti and A. M. Kaynia, “Suction caisson foundations for offshore wind turbines subjected to wave and earthquake loading: effect of soil–foundation interface”, Kourkoulis, R. S. et al. Ge´otechnique, vol. 64, No. 3, 2014, pp. 171–185 (http://dx.doi.org/10.1680/geot.12.P.179).
 H. Yu, X. Zeng, X. Wang, “Seismic Centrifuge Modelling of Offshore Wind Turbine with Tripod Foundation”, 2013, 978-1-4673-4444-9/13/$31.00 ©2013 IEEE.
 H. Yu, X. Zeng, B. Li and H. Ming. (2013). “Effect of fabric anisotrophy on liquefaction of sand.” ASCE Journal of Geotechnical and Geoenvironmental Engineering, Vol. 139(5), 2013, pp. 765- 74.
 C. Latini, M. Cisternino, V. Zania, “Dynamic stiffness of horizontally vibrating suction caissons. Proceedings 17th Nord Geotech Meet”, 2016.
 FL. Joseph, Z. Arno. “Mohr–Coulomb failure criterion”, Rock Mech Rock Eng, vol. 45, 2012, pp. 975–979.
 H. Jiang, YL. Xie, “A note on the Mohr-Coulomb and Drucker-Prager strength criteria”, Mech. Res. Commun., vol. 38(4), 2011, pp. 309–314.
 M. Saleh Asheghabadi, “Finite element seismic analysis of soil-tunnel interactions in clay soils”, Iranian Journal of Science and Technology, Transactions of Civil Engineering, in press.