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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). 相似文献
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牛顿在1689年构思了一个理想实验,即著名的“水桶实验”.在“水桶实验”中,一个注水的水桶起初保持静止.当它开始发生转动时,水桶中的水最初仍保持静止,但随后也会随着水桶一起转动,于是可以看到水渐渐地脱离其中心而沿桶壁上升形成凹状,直到最后和水桶的转速一致,水面相对静止.辩证力学的理论预言是:在地球的引力场内,旋转水桶中水面形状由平变凹,其形状是抛物线旋转曲面.笔者尝试从几种不同角度证明最后稳定时液面的形状是抛物线旋转曲面. 相似文献
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