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Development of Device to Resist Horizontal Displacement of Asphalt Concrete Track

아스팔트콘크리트 궤도용 궤도변위 저항 장치 개발

  • Lee, Seonghyeok (High-speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Yoon, Wooyong (Department of Civil Engineering, Kyung Hee University) ;
  • Bae, Younghoon (High-speed Railroad System Research Center, Korea Railroad Research Institute)
  • Received : 2016.08.09
  • Accepted : 2016.11.08
  • Published : 2016.12.31

Abstract

Asphalt concrete track (ACT) is a track system connecting wide sleepers and concrete panels on top of an asphalt concrete layer; such a system requires adequate resistance force against various longitudinal and lateral external loads. In this study, a series of experiments were carried out to assess the longitudinal and lateral resistance force of a wide sleeper and concrete panel type ACT. The required shear resistance force of the horizontal displacement restraint device (HDRD) was evaluated. Furthermore, a concrete block type anchor and a steel pipe type anchor were developed as HDRDs. The shear resistance force was decided based on the experimental results of horizontal shear tests for each anchor system. In addition, proper numbers and arrangement design guidelines for the HDRDs were suggested considering the shear resisting capacity and economics for HDRDs applied to ACT.

Acknowledgement

Supported by : 한국철도기술연구원

References

  1. S.H. Lee, J.W. Lee (2013) Needs and prospects of the asphalt track system, Railway Journal, 16(2), pp. 58-62.
  2. Korea Railroad Research Institute (2015) Development of asphalt roadbed and track system suited to speed up, Korea Railroad Research Institute.
  3. DB Systemtechnik (2002) Requirements Catalog for the Construction of the Permanent Way-4th Revised Edition, Deutsche Bahn AG, Frankfurt am Main, Ch.2 pp. 1-2.
  4. Korea Rail Network Authority (2014) KR Code-14060:Design of track materials, Korea Rail Network Authority.
  5. Bernhard Lichtberger (2005) Track compendium:Formation, Permanent way, Maintenance, Economics, Eurailpress, Hamburg, pp. 53-59.