Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Review of Minimum Curve Radius and Cant Range Setting for Mixed Section of Low and High speed Trains in Conventional Railway Line

일반철도의 저속 및 고속열차 혼용구간 최소곡선반경 및 설정캔트범위 검토

  • Lee, Jae-Hyuk (Division of Global Railway System, Seoul National University of Science & Technology) ;
  • Kim, Jeong-Hyeok (Division of Railway Construction, Seoul National University of Science & Technology) ;
  • Park, Young-Gul (Division of Railway Construction, Seoul National University of Science & Technology)
  • 이재혁 (서울과학기술대학교 글로벌철도시스템학과) ;
  • 김정혁 (서울과학기술대학교 철도건설공학과) ;
  • 박용걸 (서울과학기술대학교 철도건설공학과)
  • Received : 2020.09.02
  • Accepted : 2020.10.05
  • Published : 2020.10.31
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Abstract

On conventional railway lines, trains with different speeds are operated. Therefore, trains moving on curved sections with cants must accept various ranges of balanced cants, cant deficiency, and cant excess, which is essential for the comfort and safety of train operation. In this study, the correlation between the curve radius, cant, and train speed on a track was analyzed to check the cant range that satisfies the criteria of train types, operation speed, cant deficiency, and cant excess. Also, the range of setting the cant by the curve radius and balanced cant were calculated by a regression analysis of train speed according to the frequency of operation in the case of mixed trains. The results could make it possible to improve the speed of the operation route, reduce the loss of ride quality, reduce the risk of derailing caused by cant deficiency, and minimize the load deflection by excess cant. This will ensure the safety of trains running on curves and improve the efficiency of track maintenance.

일반철도의 경우 운행속도가 다양한 여객열차와 화물열차가 혼용되기 때문에 차량이 곡선구간을 주행할 경우에는 승객의 승차감과 열차의 주행안전성을 확보하기 위하여 최소곡선반경을 설정하고 운행속도에 적합한 균형캔트, 부족캔트 및 초과캔트 설정범위를 만족하는 캔트를 설정하여야 한다. 본 논문에서는 선로의 곡선반경, 캔트, 열차속도의 상관관계를 분석하여 열차종별 운행속도, 부족캔트와 초과캔트에 대한 기준을 만족하는 캔트범위를 분석하고 곡선반경에 대한 현재 설계기준의 적정성을 검토하여 최적의 최소곡선반경을 제시하고자 한다. 또한, 회귀분석을 통한 열차혼용시 운행 빈도에 따른 열차운행속도를 산정하여 고속열차 횟수비에 따른 균형캔트와 곡선반경별 설정캔트 범위를 산정하였다. 위의 결과를 바탕으로 최소곡선반경과 설정캔트의 적정범위를 제시함으로써 노반과 궤도설계에 반영하여 운영노선의 속도향상, 부족캔트에 의한 승차감저하 및 탈선위험을 방지하고, 초과캔트에 의한 하중편중을 최소화하여 곡선선로를 주행하는 열차의 주행안전성 확보와 선로유지관리 효율성을 향상하고자 하였다.

Keywords

References

  1. Ministry of Land, Infrastructure and Transport, "The 3rd National Rail Network Establishment Plan(2016-2025)", pp.41
  2. Ministry of Land, Infrastructure and Transport, "Provisions on Railroad Construction Standards, Article 6 Curve radius", Korean National Railway Construction Standard http://www.law.go.kr/admRulSc.do?menuId=5&subMe nuId=41#liBgcolor5
  3. Ministry of Land, Infrastructure and Transport, "Provisions on Railroad Construction Standards, Article 7 Cant", Korean National Railway Construction Standards, http://www.law.go.kr/admRulSc.do?menuId=5&subMenuId=41#liBgcolor5
  4. Korea Rail Network Authority, "Railway Design Guideline and Manual KR C-14020 Track Linear and Wiring", 2018, pp.54
  5. J. C. Lee, Analysis of Ride Comfort and Rail Wear in Track with Cant Deficiency, Master's thesis, Korea National University of Transportation, Uiwang, Korea, pp.68-69, 2016.
  6. G. C. Shin, B. G. Joo, S. H. Jung A Study on the Rail Wear and Cant Adjustment according to the Increase of Train Speed, Korean Railway Association Annual Fall Conference, jeju, South Korea, pp.37-44, May 2007
  7. G. E. Kim, A study on Correlation between Adjusting Cant and rail wear Caused by the Application of Track Improvement Work, Master's thesis, Seoul National University of Science and Technology, Seoul, Korea, pp.40-43, 2013.
  8. C. K. Hong, A study on Influencing Factors of Rail Wear and its Reduction Measures, Master's thesis, Seoul National University of Science and Technology, Seoul, Korea, pp.57-58, 2002.
  9. P. J. Yoo, Rail Wear Limit Analysis based on Track Stability in Curved Railway, Ph.D dissertation, Seoul National University of Science and Technology, Seoul, Korea, pp.59-61, 2018.
  10. D. Y. Sung, Y. G. Park, P. J. Yoo, I. C. Baek, J. I. Lee, Analysis of Derailment Coefficient by Cant and Uneven Rail Wear in Curved Tracks, Korean Railway Association Annual Spring Conference, Yeosu, South Korea, pp.451-452, May 2019.
  11. B. H. Song, The Evaluation Method for Optimal Cant of Curved Ballast Track on Mixed Traffic Line, Ph.D dissertation, Seoul National University of Science and Technology, Seoul, Korea, pp.114-115, 2019.