SIMPLIFIED PREDICTION FOR SETTLEMENT OF LIQUEFIED GROUND WITH ELASTO-PLASTIC MODEL

Abstract

The minimum effective stress is a lower limit of the effective stress and it is required in some effective stress analyses for the numerical stability. This study applies the minimum effective stress concept proposed by Sento et al. (2004) to an existing effective stress analysis in the framework of elasto-plastic theory. Liquefaction occurrence during shaking and settlement due to dissipation of excess pore water pressure were quantitatively predicted. Performance of this method was verified through the numerical simulations of laboratory tests as well as dynamic centrifuge tests.