Three-Dimensional Effects of Rectangular Embankment Loading Placed on Soft Ground

Abstract

Although geotechnical problems are inherently three-dimensional (3D), they are frequently approximated by one-dimensional (1D) or two-dimensional (2D) analyses. These simplifications are often based on certain assumptions. However, the use of simplified analyses under conditions where the 3D effects cannot be ignored reduces the accuracy of future predictions. This study aimed to investigate the relevance of plane strain analyses and 3D analyses, considering the 3D effects on typical load problems. In this study, 3D parametric analyses were conducted using several models with different embankment lengths in the longitudinal direction. The elastoplastic constitutive model (The Sekiguchi-Ohta model) and the linear elastic model were used to investigate the influence of the embankment shape and soil material on the 3D effects. This study confirms that the 3D effect factors help estimate the displacement of each part while considering the 3D effects from the analysis results obtained by applying the plane strain condition.

Leaning Pagoda of Ayutthaya Analysis With Three-Dimensional Effects and Ground Uncertainty

“…The important aspect of this method is that it considers the correlation between the plane strain analysis results and the three-dimensional analysis results. This technique applies a method that the authors confirmed to be applicable to the deformation of the surrounding ground due to embankments [9].…”