Shake Table Test and Numerical Simulation on Verification for Seismic Stability of Railway Embankments Taking into Account Damage Process

Abstract

This study aims to validate a seismic performance verification method for embankments that accounts for the damage process up to sliding failure. A centrifuge shake table test was conducted to observe the damage process during shaking. Results showed that sliding failure occurred as soon as shear strain at the toe of the slope exceeded the limit value of Damage level 3. Furthermore, the FEM using the GHE-S model combined with the multi-shear spring model successfully reproduced the damage process. These findings confirm the applicability of the proposed analysis method for both safety and reparability assessments of embankments.