Evaluation of Track Impact Factor in the Conventional Line

기존선 궤도의 충격계수 산정에 관한 연구

  • 엄주환 (한국철도기술연구원, 인프라기술개발팀) ;
  • 유영화 (한국철도기술연구원, 인프라기술개발) ;
  • 엄기영 (한국철도기술연구원, 인프라기술개발팀)
  • Published : 2003.12.01


In this paper, the track impact factor of conventional line was evaluated using the data for wheel load measured in field and the properties of current operating trains. The equation for track impact factor was presented through the statistical analysis of variational ratio in wheel load and compared with other design equations in domestic and foreign countries. A review on the safety of track system in conventional line was made from the relationship between the velocity and the corresponding impact factor. It was found that the impact factor from the proposed equation is a little less than the values from the equations adopted in both AREA and domestic railway, while it is same as the equation for continuous welded rail(CWR) in Japan. Therefore it could be said that the track satisfies a criteria for dynamic load caused by the train and the corresponding level of safety is guaranteed for dynamic load of the train


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