ABSTRACT
In this study, cyclic torsional shear tests were conducted under experimental conditions of density, fine-grain fraction, and static earth pressure coefficient in order to quantify the liquefaction countermeasure effect of the compaction improved. Liquefaction properties were evaluated as liquefaction strength ratio and normalized accumulated dissipation energy. We concluded that the static earth pressure coefficient, in addition to density, has a significant effect on liquefaction properties. The denser the specimen, the stronger the mutual effect was. The estimated equations obtained from multivariate analysis using the test condition as parameters showed a high correlation with the experimental data.
