Model tests on the bearing capacity of wide-shallow composite bucket foundations for offshore wind turbines in clay

被引：101
作者：
Ding, Hongyan [1 ,2 ,3 ]
Liu, Yonggang [3 ]
Zhang, Puyang [1 ,2 ,3 ]
Le, Conghuan [1 ]
机构：
[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Minist Educ, Key Lab Coast Civil Struct Safety, Tianjin 300072, Peoples R China
[3] Tianjin Univ, Sch Civil Engn, Tianjin 300072, Peoples R China
来源：
OCEAN ENGINEERING | 2015年 / 103卷
基金：
中国国家自然科学基金;
关键词：
Wide-shallow composite bucket foundation; Deformation mechanism; Ultimate bearing capacity; Rotation center; Analytical expressions; Failure envelope; CIRCULAR FOUNDATIONS; SUCTION CAISSONS; STRIP;
D O I：
10.1016/j.oceaneng.2015.04.068
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
This paper presents a new type of wide-shallow composite bucket foundation (WSCBF) for offshore wind turbines, which can be adapted to the characteristics and development needs of offshore wind farms due its special structural form. Several field tests on the horizontal bearing capacity of WSCBF were carried out in saturated clay off the coast of Jiangsu. The deformation mechanism, the soil-structure interaction and the ultimate bearing capacity of the WSCBF are determined depending on the tests. Based on the position of the rotation center, analytical expressions of soil pressure and ultimate bearing capacity for the WSCBF are presented. The accuracy of the test results and analytical expressions is validated and supplemented by numerical simulation with a finite element method. Moreover, by means of numerical simulation, the envelope curve of ultimate bearing capacity of the WSCBF is described in H-M load space, clarifying the load-bearing characteristics of the WSCBF under combined loads. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：114 / 122
页数：9
相关论文
共 22 条
[1]  
[Anonymous], 2010, ABAQUS User's Manual
[2]   Inclined load capacity of suction caissons [J].
Aubeny, CP ;
Han, SW ;
Murff, JD .
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2003, 27 (14) :1235-1254
[3]   Combined loading of skirted foundations [J].
Bransby, MF ;
Randolph, MF .
GEOTECHNIQUE, 1998, 48 (05) :637-655
[4]  
Bransby MF, 1997, COMPUTER METHODS AND ADVANCES IN GEOMECHANICS, VOL 3, P1947
[5]  
Byrne B.W., 2002, Int. Conf. Offshore Mech. Arctic Eng., V36142, P263
[6]  
Ding H., 2012, Transactions of Tianjin University, V18, P168, DOI [10.1007/s12209-012-1657-1, DOI 10.1007/S12209-012-1657-1]
[7]  
Ding H, 2013, Trans Tianjin Univ, V19, P188
[8]  
Erbrich C. T., 1999, OnePetro
[9]   Undrained failure envelope for skirted foundations under general loading [J].
Gourvenec, S. ;
Barnett, S. .
GEOTECHNIQUE, 2011, 61 (03) :263-270
[10]   Effect of strength non-homogeneity on the shape of failure envelopes for combined loading of strip and circular foundations on clay [J].
Gourvenec, S ;
Randolph, M .
GEOTECHNIQUE, 2003, 53 (06) :575-586
123