Biaxial Loading of Offshore Monopiles: Numerical Modeling
Publication: International Journal of Geomechanics
Volume 17, Issue 2
Abstract
In this study, finite-element (FE) modeling was used to examine the influence of biaxial lateral loading of a monopile foundation. Two different soil models were adopted to investigate the influence of state-dependent and anisotropic behavior of soil on monopile response. A series of analyses was carried out in which both cyclic and static lateral loads were applied to the pile. Results show that biaxial loading significantly influenced the pile-head load-displacement response in addition to the development of significant accumulated displacements and coexistent soil loosening and densification. Moreover, predictions determined using a state-independent soil model were shown to be significantly nonconservative; these findings have important implications for environmental loading of offshore monopiles.
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Published In
International Journal of Geomechanics
Volume 17 • Issue 2 • February 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: May 29, 2015
Accepted: Apr 4, 2016
Published online: May 18, 2016
Discussion open until: Oct 18, 2016
Published in print: Feb 1, 2017
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