Searched for: subject%3A%22P%255C-y%255C+curve%22
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document
Veldhuijzen van Zanten, Daan (author)
In this thesis the performance of five CPT-based p-y models by Novello (1999), Dyson & Randolph (2001), Li, et al. (2014) and Suryasentana & Lehane (2014;2016) is assessed. This is done in part by comparing the measured load-deflection response from a set of lab- and field tests that is representative for offshore monopile structures to...
master thesis 2022
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Li, Q. (author), Gavin, Kenneth (author), Askarinejad, A. (author), Prendergast, L. J. (author)
The influence of combined loading on the response of monopiles used to support offshore wind turbines (OWTs) is investigated in this paper. In current practice, resistance of monopiles to vertical and lateral loading is considered separately. As OWT size has increased, the slenderness ratio (pile length, L, normalised by diameter, D) has...
journal article 2022
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Li, Q. (author), Askarinejad, A. (author), Gavin, Kenneth (author)
The majority of offshore wind structures are supported on large-diameter, rigid monopile foundations. These piles may be subjected to scour due to the waves and currents that causes a loss of soil support and consequently decreases the pile capacity and system stiffness. The results of numerical models suggest that the shape of the scour hole...
journal article 2021
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Chortis, G. (author), Askarinejad, A. (author), Prendergast, L.J. (author), Li, Q. (author), Gavin, Kenneth (author)
The influence of scour on the lateral response of monopile foundations for offshore wind turbines is investigated in this paper. Application of lateral load-displacement (p-y) curves to predict the lateral pile behaviour is subject to uncertainty as many of the presently used design approaches have been derived for long, slender piles. These...
journal article 2020
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Bascunan Chaparro, Sebastian (author)
Monopiles are commonly used as foundations for offshore wind turbine generators (WTGs). Due to the rapid growth of the offshore wind energy sector, there is increasing demand for WTGs of larger capacities which evidently leads to demand for monopiles with larger diameter. An industry standard approach for assessing pile lateral response is the p...
master thesis 2019
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Van de Putte, Valentine (author)
This thesis project has set out to investigate the response in fore-aft direction of a monopile wind foundation supporting an NREL 5MW turbine, offshore the coast of Taiwan, which is affected by weak to strong earthquake ground motion in combination with normal sea state conditions. The soil at the location of the monopile is layered, with sand...
master thesis 2018
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Chortis, Giorgos (author)
Offshore wind farms are rapidly developing in Western Europe as an alternative means of clean energy. The foundation of wind-turbines in the shallow water of the Northern Sea is almost exclusively (over 87%) performed by short rigid monopiles, as an efficient and relatively cheap solution. Scour formation, meaning the soil removal around the...
master thesis 2018
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Foursoff, Willemijn (author)
The API RP 2GEO (2011) p-y method is an industry standard approach to predict the lateral pile behaviour of slender oil platform piles with length (L) over diameter (D) ratios > 10. However, offshore wind turbines are founded on large diameter monopiles with an L/D ratio < 8, which are rather rigid piles. There are concerns about the...
master thesis 2018
document
Verhoef, R.M. (author)
The subject of this master's thesis stems from a lack of design rules in the current regulations for dolphins located in sloping ground. Dolphins are very common objects in Dutch waterways, of which a large part are located in sloping ground. The lack of design rules causes difficulties between clients and contractors, possible unfavourable...
master thesis 2015
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Lankreijer, T.M.A. (author)
This thesis focuses on the stability of slender micro piles with a diameter of 100-400mm in soft soils when used in compressive situations. In the western part of the Netherlands and many other deltaic areas weak clay and peat deposits overlay stiffer sand layers. In these geological conditions flexural buckling may cause a considerable design...
master thesis 2014
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Kool, J.J. (author), De Gijt, J.G. (author), Groenewegen, L. (author)
Finite element method (FEM) is increasingly applied as a first choice tool for designing structures. The same trend is seen in probabilistic designing. Consequently, the application of the combination of these two methods is discussed in this paper.In this study the presence of potential overcapacity in a structure has been studied. As an...
conference paper 2013
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Kool, J.J. (author)
Jetties are designed by the guidance of the deterministic standards. These standards are based on the standardized values of safety factors (semi-probabilistic) and use the load and the capacity of every element as a standard value. The interaction of every separate element as a part of a whole is not taken in to account. The use of...
master thesis 2011
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