Abstract

The formation mechanism of (or crack) in saturated sand is analyzed numerically It is shown that there will be no stable water film in the saturated sand even if the strength of the skeleton is zero and no positions are choked. The stable films initiate and grow if the choking state keeps unchangeable once the fluid velocities of one position decreases to zero in a liquefied sand column. A simplified method for evaluating the thickness of is presented according to a solidification wave theory. The theoretical results obtained by the simplified method are compared with the numerical results and the experimental results of Kokusho.

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