@book{053650e7dbb84d8386c1e1be2c2ddc70,

title = "Determination of p-y Curves for Bucket Foundations in Silt and Sand Using Finite Element Modelling",

abstract = "Design of offshore wind turbine foundations are today based on analytical formulas, which describes the link between a displacement, y, and the associated soil pressure, p. The formulas are empirically developed on slender piles with a slenderness ratio L=D > 30, but foundations of today are less slender than the tested piles. The suction bucket has a slenderness ratio of 0.5-1, thus its response is a rigid movement, where slender piles undergoes a flexible movement. Due to the importance of precise estimations, p-y formulations for suction buckets in drained and undrained silt are sought developed with use of finite element. In general the developed p-y formulations for the drained and undrained silt are fairly precise. Furthermore, the same method and basic formulation of the drained silt is applied to data of the drained sand from {\O}stergaard et al. [2015]. The developed formulation herefore shows to be more versatile and precise than the formulation suggested by {\O}stergaard et al. [2015]. The developed p-y formulations are functions of the effective vertical in-situ stress, soil stiffness, diameter of the bucket and the internal friction angle/the undrained shear strength.",

keywords = "Bucket foundations, P-Y Curves, Silt, Sand, Modelling, Finite element modelling, Bucket foundations, P-Y Curves, Silt, Sand, Modelling, Finite element modelling",

author = "Vinojan Vethanayagam and Ibsen, {Lars Bo}",

year = "2017",

language = "English",

series = "DCE Technical Memorandum",

publisher = "Department of Civil Engineering, Aalborg University",

number = "64",

address = "Denmark",

}