The Behavior of Sub Structure of Railway Train-Induced Load

Abstract

The vibration behavior in rail transport systems can cause significant damage to train foundations, leading to accidents, delays, and discomfort for passengers. The substructure of the railway includes several materials, including subsoil, subgrade, sub ballast, and ballast, making it challenging to conduct dynamic forces analysis. In this project, we aim to evaluate the behavior of substructures of railway train-induced load by static load method compared to the quality of the track substructure by 3D simulation via PLAXIS 3D software. Our results show that the maximum displacement is 30.0 millimeters, the maximum vertical stress is 0.11 MPa, and the distribution of track modulus was in the subsoil range of 5,000 – 80,000 MPa when the track substructure was poor quality.