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Numerical Modeling of Suction Bucket under Cyclic Loading in Saturated Sand
M. Emdadifard Department of Civil Engineering, Amirkabir University of Technology, Tehran, Iran S.M. Mir M. Hosseini Department of Civil Engineering, Amirkabir University of Technology, Tehran, Iran
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ABSTRACT |
Numerical modeling is carried out to investigate the responses of suction bucket foundations under vertical cyclic loading. Numerical results are compared with centrifuge experiment results. The buckets with different aspect ratio (length/Diameter) are investigated under static and cyclic loading. For a constant diameter, by increasing the aspect ratio the cyclic bearing capacity will be increased and the slope of cyclic bearing capacity vs. aspect ratio also increases more rapidly with increasing diameter. Under cyclic loading, the uplift capacity of the bucket was found to be 60–76% of that in the static pullout capacity. Large settlements of the bucket and as well as of the sand layer around the bucket are induced by cyclic loading.
Keywords: Numerical modeling, Suction Bucket, Saturated Sand, Cyclic Loading, Finite Difference.
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