scholarly journals Upper Bound Solutions for Uplift Ultimate Bearing Capacity of Suction Caisson Foundation

2019 ◽  
Vol 33 (6) ◽  
pp. 685-693 ◽  
Author(s):  
Guo-liang Dai ◽  
Wen-bo Zhu ◽  
Qian Zhai ◽  
Wei-ming Gong ◽  
Xue-liang Zhao
2011 ◽  
Vol 243-249 ◽  
pp. 2112-2115
Author(s):  
Zhi Yun Wang ◽  
Mao Tian Luan ◽  
Lu Shen

To understand features of bearing capacity of suction caisson foundation is one of the key issues in design and construction of deep-water marine structures. In this paper, the general-purpose finite element analysis package ABAQUS is employed to conduct three-dimensional numerical analyses on load-carrying features of suction caisson foundation under vertically uplift load, horizontal load and moment. Then the ultimate bearing capacity of suction caisson foundation for undrained condition of the soil is evaluated by displacing-controlling procedure. Moreover, three-dimensional failure envelope of suction caisson foundation under combine loading condition are established by the proposed numerical procedure.


2011 ◽  
Vol 243-249 ◽  
pp. 4718-4722
Author(s):  
Xiu Bin Gong ◽  
Qing Lai Fan ◽  
Ke Wu

Presented in this paper are the three-dimensional nonlinear finite element analyses of the failure envelopes of suction caisson under torsion, vertical and lateral pullout combined load in soft clay. The soft clay under undrained condition is simulated by perfectly elasto-plastic Tresca model. Through the numerical analyses, the failure envelopes for combined loading (V-T、H-T、V-H-T) of suction caisson is reviewed. And the mathematical expression of failure envelope is deduced. It is shown that (1) the circular plastic failure area is outward-extending. (2) The bearing capacity of suction caisson foundation in V-T、H-T load spaces is increasing with the aspect ratio L/D. (3) The equation of failure envelope can be used to evaluate the stability of suction caisson foundation for offshore floating wind turbine.


2020 ◽  
Vol 34 (2) ◽  
pp. 267-278
Author(s):  
Guo-liang Dai ◽  
Wen-bo Zhu ◽  
Qian Zhai ◽  
Wei-ming Gong ◽  
Xue-liang Zhao

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