Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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A study on vibration characteristics of track components according to track type in HSL tunnel

고속선 터널내 궤도 형식에 따른 궤도 구성품의 진동 특성에 관한 연구

  • 김만철 (한국철도기술연구원/궤도 토목연구본부) ;
  • 장승엽 (한국철도기술연구원/궤도 토목연구본부) ;
  • 강윤석 (한국철도기술연구원/궤도 토목연구본부) ;
  • 한진석 (서울산업대학교 철도전문대학원 철도건설공학과) ;
  • 한상철 (서울산업대학교 토목공학과)
  • Published : 2005.05.01
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Abstract

In this paper, an experimental study is carried out to analyze the vibration characteristics of components of the ballast track and the slab track layed in HSL tunnels. According to vibration level test of ballast tracks and concrete tracks on HSL, the vertical vibration level of rails on concrete tracks is 6.2dB more than that on ballast tracks, and especially on $50{\sim}80Hz$ frequency band, the difference is more than 6dB. The orther track components according to track type are appeared to be smaller on the slab track than on the ballast track. Regarding car body vibration, 80Hz component, which was not remarkable while running on open tracks, is considerably amplified in tunnels where concrete tracks are laid.

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