Correlation between Apparent Track Stiffness Measured by Light-Weight Deflectometer and Train-Loading

초록

In this research, apparent track stiffness by light-weight deflectometer (LWD) was measured. Apparent track stiffness defined as a ratio of maximum load to maximum displacement was calculated by measureing wheel load and sleeper displacement under train-loading. This study shows that apparent track stiffness under LWD loading and train-loading has a linear relationship