LIQUEFACTION PROCESS OF INHOMOGENEOUS SAND BED UNDER A SERIES OF OSCILLATING WATER PRESSURE

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This paper deals with the liquefaction process of the inhomogeneous sand bed under the oscillating water pressure. The inhomogeneous sand bed treated in this study has a smaller porosity in upper zone and has a larger porosity in the lower zone. In our experiment, it is formed after the loosely deposited sand bed has been once liquefied, The study is carried out experimentally and numerically, by means of the vertical one-dimensional model of sand bed. The applicability of the analytical model proposed in our past study to the inhomogeneous sand bed is verified.

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