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Publications
Yin, QL., Guedes Soares, C. and Dong, S. (2017), “Characteristics of p-y curves for monopile offshore wind turbines on clay soil”, Progress in the Analysis and Design of Marine Structures, Guedes Soares, C. & Garbatov Y. (Eds.), Taylor & Francis Group, London, UK, pp. 905-912
The aim of the present study is to investigate numerically the characteristics of p-y curves of monopile offshore wind turbine (OWT) under lateral load embedded in clay soils based on a finite element (FE) model. The horizontal displacement-based load is subjected at the top of the tower and the monopile is constrained through the interaction with clays. Two sets of lateral loads were applied corresponding to the pure elastic state and the partial plastic state of the clay soil. Clays with four different shearing strengths are considered as the supporting sub-soil in the numerical model. Two dimensional FE interaction models are established and the contact forces on the interface are calculated. To obtain the real initial stress state in soil, a geostatic step was set before the lateral load was applied. The spring (referred to as total spring) at the each depth is split into two sub-springs (one on the left and one on the right) on the nodes of the monopile. Through the calculation of sub-springs, the characteristics of continuous p-y curves of total springs back-calculated from FEM are analyzed and compared between different clays.
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