Prediction of long-term settlement and accurate analysis of horizontal displacement based on model test results

Abstract

This paper presents the long-term prediction of the ground behavior, including secondary consolidation via the particle filter, using model test results. There have been some difficulties in evaluating the behavior, such as two-dimensional displacements, because an unsuitable value for Poisson’s ratio and the constitutive model are generally employed for consolidation problems. This paper identifies Poisson’s ratio in addition to the compression index, the permeability, the initial volumetric strain, and the secondary compression index, and adopts the modified Cam-clay model, considering anisotropy, to overcome the problem. The prediction is performed using the identified parameters, and numerical examples of accurate predictions of the ground behavior are shown.