곡선부 콘크리트궤도의 레일마모 저감 방안 연구

초록

The rail replacement on the curved track has continuously maintained according to criteria of gauge face worn rail more than it based on accumulated passing tonnage. Also, Seoul Metro which has a lot of curved track is increasing the maintenance cost due to the rail head side wear. Seoul Metro is progressively increasing the construction of concrete track, and the reduction of rail head side wear in curved concrete track needs to researches. This paper reviewed the correlation between the wear rates and accumulated passing tonnage according to curve radius, and a possibility to decrease wear of rails on curves is analysed. The purpose of this study was to estimate the influence of rail wearing on the track widening and permissible deviations on curves