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Monotonic laterally loaded pile testing in a stiff glacial clay till at Cowden
Byrne, B.W.; McAdam, R.A.; Burd, H.J.; Beuckelaers, W.J.A.P.; Gavin, K.G.; Houlsby, G.T.; Igoe, D.J.P.; Jardine, R.J.; Martin, C.M.; Wood, A.M.; Potts, D.M.; Gretlund, J.S.; Taborda, D.M.G.; Zdravkovic, L. (2020). Monotonic laterally loaded pile testing in a stiff glacial clay till at Cowden. Geotechnique 70(11): 970-985. https://hdl.handle.net/10.1680/jgeot.18.PISA.003
In: Geotechnique: the international journal of soil mechanics. Institution of Civil Engineers: London. ISSN 0016-8505; e-ISSN 1751-7656
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoord
    Marien/Kust
Author keywords
    full-scale tests; model tests; offshore engineering; piles & piling; soil/structure interaction
Auteurs  Top 
  • Byrne, B.W.
  • McAdam, R.A.
  • Burd, H.J.
  • Beuckelaers, W.J.A.P.
  • Gavin, K.G.
  • Houlsby, G.T.
  • Igoe, D.J.P.
  • Jardine, R.J.
  • Martin, C.M.
  • Wood, A.M.
  • Potts, D.M.
  • Gretlund, J.S.
  • Taborda, D.M.G.
  • Zdravkovic, L.
Abstract
    This paper describes the results obtained from a field testing campaign on laterally loaded monopiles conducted at Cowden, UK, where the soil consists principally of a heavily overconsolidated glacial till. These tests formed part of the PISA project on the development of improved design methods for monopile foundations for offshore wind turbines. Results obtained for monotonic loading tests on piles of three different diameters (0·273 m, 0·762 m and 2·0 m) are presented. The piles had length-to-diameter ratios (L/D) of between 3 and 10. The tests included the application of monotonic loading incorporating periods of constant load to investigate creep effects, and investigations on the influence of loading rate. Data are presented on measured bending moments and inclinations induced in the piles. Inferred data on lateral displacements of the embedded section of the piles are determined using an optimised structural model. These field data support the development of a new one-dimensional modelling approach for the design of monopile foundations for offshore wind turbines. They also form a unique database of field measurements in an overconsolidated clay, from lateral loading of piles at a vertical distance above the ground surface.
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