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Some Aspects of Skin Friction of Piles in Clay Under Cyclic Loading

机译：循环荷载作用下粘土中桩的摩擦力研究

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A number of model tests on a pile shaft in clay have been performed to investigate the influence of cyclic loading on the ultimate skin friction. It is found that the loss of skin friction due to cyclic loading depends on both the cyclic displacement prior to failure and the number of cycles of load. Such loss of skin friction can occur both for one-way or two-way cyclic loading. The cyclic stiffness of the pile depends on the cyclic displacement of the pile. The rate of loading also influences the skin friction but does not appear to influence the stiffness of the pile. The results of this investigation can be used in a theoretical analysis of the response of a pile to cyclic axial load.

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