Abstract
This paper presents a simple method to estimate cyclic plastic deformation of ballasted track subjected to repeated train pas-sages in terms of the strength and deformation characteristics of coarse granular materials. A new analytical procedure with linear elastic FE analysis considering the cumulative strain derived from multi-ring shear test results of poorly-graded crushed stone, namely ballast, was proposed, and it was revealed that the analytical procedure could roughly estimate the residual settlement of railroad ballast under cyclic moving wheel loads, by comparing test results of small scale model tests of ballasted track with the analytical results.
