뜬침목개소 궤도거동 특성에 관한 연구

Ballast support sleepers and play a role distributing at roadbed, transferred load from sleepers. Thus, ballast is very important element. In the high speed line, section of floating sleepers be occurring larger shock loads than good section as driving speed is 300km/h. This study measured and analyzed about sleeper vertical displacement, wheel load, rail bending stress, sleeper vertical acceleration where a variety of sleeper vertical displacement. In addition, according to the state of the rail surface irregularity, we measured track behavior and analyzed effectiveness of removing rail surface irregularity. We analyzed quantitatively track behavior, according to the sleeper vertical displacement.