SIMPLIFIED EVALUATION METHOD ABOUT EFFECT OF LIQUEFACTION COUNTERMEASURE FOR THE GRID-FORM DEEP MIXING WALLS

Abstract

The grid-form deep mixing walls method is one of the liquefaction countermeasure methods. In order to design the grid-form deep mixing walls, it is necessary to carry out seismic response analysis with FEM model based on the result of soil investigations. Few geotechnical engineers can design the method because it is difficult to conduct of the analysis.
In this report, the simplified evaluation tool is introduced that the effect of the liquefaction countermeasure can be judged. To confirm the effectiveness of the tool, Dcy values considered the effect of grid-form walls are compared with settlements of centrifuge model tests.