Abstract
In order to investigate the influence of the vertical vibration loading on the liquefaction of saturated sand, one dimensional model for the saturated sand with a vertical vibration is presented based on the two phase continuous media theory. The development of the liquefaction and the liquefaction region are analyzed. It is shown that the vertical vibration loading could induce liquefaction. The rate of the liquefaction increases with the increase of the initial limit strain or initial porosity or amplitude and frequency of loading, and increases with the decrease of the permeability or initial modulus. It is shown also that there is a phase lag in the sand column. When the sand permeability distribution is non-uniform, the pore pressure and the strain will rise sharply where the permeability is the smallest, and fracture might be induced. With the development of liquefaction, the strength of the soil foundation becomes smaller and smaller. In the limiting case, landslides or debris flows could occur.
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The project supported by the National Natural Science Foundation of China (40025103, 10202024)
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Xiaobing, L., Qingming, T., Cheng, C.M. et al. Liquefaction and displacement of saturated sand under vertical vibration loading. Acta Mech Sinica 20, 96–105 (2004). https://doi.org/10.1007/BF02484250
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DOI: https://doi.org/10.1007/BF02484250