Articles | Volume 8, issue 3
https://doi.org/10.5194/wes-8-327-2023
https://doi.org/10.5194/wes-8-327-2023
Research article
 | 
08 Mar 2023
Research article |  | 08 Mar 2023

Cyclic overlay model of py curves for laterally loaded monopiles in cohesionless soil

Junnan Song and Martin Achmus

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Cited articles

Abaqus: Standard User's Manual, Version 6.14. Dassault Systèmes Simulia Corp, http://130.149.89.49:2080/v6.14/ (last access: 20 September 2021), 2016. 
Achmus, M., Kuo, Y.-S., and Abdel-Rahman, K.: Behavior of monopile foundations under cyclic lateral load, Comput. Geotech., 36, 725–735, 2009. 
Albiker, J.: Untersuchungen zum Tragverhalten zyklisch lateral belasteter Pfähle in nichtbindigen Böden, PhD Thesis, Leibniz Universität Hannover, Institute for Geotechnical Engineering, Vol. 77, 2016. 
Albiker, J. and Achmus, M.: Development and validation of a numerically derived scheme to assess the cyclic performance of monopile foundations for offshore wind energy converters, 9th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE), Porto/Portugal, 25–27 June 2018, ISBN 978-113854446-8, 2018. 
API: Recommended Practice 2GEO-Geotechnical and Foundation Design Considerations, American Petroleum Institute, Version October 2014, 2014. 
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Short summary
In this research, a cyclic py overlay model for monopiles in sand soils could be developed via comparison of numerical simulations of monopile behaviour: once under monotonic and once under cyclic loading with a defined number of load cycles (utilizing the stiffness degradation method). The new cyclic overlay model gives plausible results and can be applied to any monotonic py approach for monopiles in sand.
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