Bearing Capacity of Suction Caisson for Offshore Floating Wind Turbine

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 243-249)

Edited by:

Chaohe Chen, Yong Huang and Guangfan Li

Pages:

4718-4722

DOI:

10.4028/www.scientific.net/AMR.243-249.4718

Citation:

X. B. Gong et al., "Bearing Capacity of Suction Caisson for Offshore Floating Wind Turbine", Advanced Materials Research, Vols. 243-249, pp. 4718-4722, 2011

Online since:

May 2011

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Price:

$35.00

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