Centrifugal experimental study of suction bucket foundations under dynamic loading |
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Authors: | Xiaobing Lu Yongren Wu Bintian Jiao Shuyun Wang |
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Institution: | (1) Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100080, China |
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Abstract: | Centrifugal experiments were carried out to investigate the responses of suction bucket foundations under horizontal and vertical
dynamic loading. It is shown that when the loading amplitude is over a critical value, the sand at the upper part around the
bucket is softened or even liquefied. The excess pore pressure decreases from the upper part to the lower part of the sand
layer in the vertical direction and decreases radially from the bucket’s side wall in the horizontal direction. Large settlements
of the bucket and the sand layer around the bucket are induced by dynamic loading. The dynamic responses of the bucket with
smaller height (the same diameter) are heavier.
The project supported by the fund of Chinese Ocean Oil Co. and Chinese Academy of Sciences(KZCX2-YW-302-02). |
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Keywords: | Centrifugal experiments Suction bucket Dynamic loading Saturated sand |
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