Modelling the drained response of bucket foundations for offshore wind turbines under general monotonic and cyclic loading

被引：54
作者：
Foglia, Aligi [1 ]
Gottardi, Guido [2 ]
Govoni, Laura [2 ]
Ibsen, Lars Bo [3 ]
机构：
[1] Fraunhofer IWES, Oldenburg, Germany
[2] Univ Bologna, DICAM, I-40126 Bologna, Italy
[3] Aalborg Univ, Dept Civil Engn, Aalborg, Denmark
来源：
APPLIED OCEAN RESEARCH | 2015年 / 52卷
关键词：
Bucket foundation; Offshore wind turbines; Cyclic loading; Macro-element modelling; Small-scale physical model; SUCTION CAISSON FOUNDATIONS; PLASTICITY MODEL; SPUDCAN FOUNDATIONS; FIELD TRIALS; SAND; CLAY; BEHAVIOR; FOOTINGS;
D O I：
10.1016/j.apor.2015.04.005
中图分类号：
P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
The response of bucket foundations on sand subjected to planar monotonic and cyclic loading is investigated in the paper. Thirteen monotonic and cyclic laboratory tests on a skirted footing model having a 0.3 m diameter and embedment ratio equal to 1 are presented. The loading regime reproduces the typical conditions of offshore wind turbines: very large cyclic overturning moment, large cyclic horizontal load and comparatively little, self-weight induced, vertical load. The experimental soil-foundation response is interpreted within the macro-element approach, using an existing analytical model, suitably modified to accommodate the footing embedment and the application of cyclic load. Details of the proposed model are provided together with evidences of its ability to reproduce the essential features of the experimentally observed behaviour. The results of the study aim at increasing the confidence in the use of the macro-element approach to predict the response of bucket foundations for offshore wind turbines, notably as the long-term accumulated displacements are concerned. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：80 / 91
页数：12
相关论文
共 36 条
  • [11] Cyclic macro-element for soil-structure interaction: material and geometrical non-linearities
    Cremer, C
    Pecker, A
    Davenne, L
    [J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2001, 25 (13) : 1257 - 1284
  • [12] Elastic response of circular footings embedded in a non-homogeneous half-space
    Doherty, JP
    Deeks, AJ
    [J]. GEOTECHNIQUE, 2003, 53 (08): : 703 - 714
  • [13] FOGLIA A., 2014, P 8 INT C PHYS MOD G
  • [14] A Similitude Theory for Bucket Foundations Under Monotonic Horizontal Load in Dense Sand
    Foglia, Aligi
    Ibsen, Lars
    [J]. GEOTECHNICAL AND GEOLOGICAL ENGINEERING, 2013, 31 (01) : 133 - 142
  • [15] Plastic response of circular footings on sand under general planar loading
    Gottardi, G
    Houlsby, GT
    Butterfield, R
    [J]. GEOTECHNIQUE, 1999, 49 (04): : 453 - 469
  • [16] A centrifuge study on the effect of embedment on the drained response of shallow foundations under combined loading
    Govoni, L.
    Gourvenec, S.
    Gottardi, G.
    [J]. GEOTECHNIQUE, 2011, 61 (12): : 1055 - 1068
  • [17] Suction caisson foundations for offshore wind turbines and anemometer masts
    Houlsby, G.T.
    Byrne, B.W.
    [J]. Wind Engineering, 2000, 24 (04) : 249 - 255
  • [18] Field trials of suction caissons in sand for offshore wind turbine foundations
    Houlsby, GT
    Kelly, RB
    Huxtable, J
    Byrne, BW
    [J]. GEOTECHNIQUE, 2006, 56 (01): : 3 - 10
  • [19] Field trials of suction caissons in clay for offshore wind turbine foundations
    Houlsby, GT
    Kelly, RB
    Huxtable, J
    Byrne, BW
    [J]. GEOTECHNIQUE, 2005, 55 (04): : 287 - 296
  • [20] A plasticity model for the behaviour of footings on sand under combined loading
    Houlsby, GT
    Cassidy, MJ
    [J]. GEOTECHNIQUE, 2002, 52 (02): : 117 - 129
1234