A Study on Growth and Restoration Model of Track Irregularity Considering Material Deterioration


Masao UCHIDA , Masashi MIWA
For planning of maintenance cycle and structural selection of ballasted track, a time history model is required, which more realistically considers material deterioration .In this paper a growth and restoration model of track irregularities is presented, using a newly proposed mothod of designing the ballasted track considering track irregularity growth, and considering the growth of rail roughness and deterioration of ballast which influence track sinking and residual irregularities after tamping.