Abstract
In this study, the construction method using wooden piles and steel sheet piles was examined as a countermeasure against liquefaction of river embankments. The behavior of river levees was confirmed, and the effect of countermeasures was evaluated in each of the models.As the research method, liquefaction experiments using a dynamic centrifuge and analysis using effective stress analysis (LIQCA) were performed.As a result, with no measures taken, the lateral flow due to liquefaction occurred on the horizontal ground on both sides of the river embankment and the embankment subsided.In the case where countermeasures were taken, displacement of the embankment could be suppressed. By penetrating the wooden piles, the ground density increased, and the effect of liquefaction countermeasures was obtained. Also, it was confirmed that the deformation of the embankment and the lateral flow was suppressed by penetrating the steel sheet piles.
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