Correlation Analysis Between Crack and TQI in RC Slab Track

철도콘크리트 슬래브 궤도상의 균열과 TQI 상관성 분석

  • 권세곤 (군산대학교 토목공학과) ;
  • 박미연 ((주)승화기술정책연구소) ;
  • 김두기 (군산대학교 토목공학과) ;
  • 박재학 ((주)승화기술정책연구소)
  • Received : 2012.12.18
  • Accepted : 2012.12.23
  • Published : 2012.12.31


Recently, in the total railroad construction field, the concrete slab track is adapted, not ballast track. Because the ballast track have the characteristics doing the ongoing maintenance and difficult to handle increasing maintenance costs, eventually the concrete slab track is selected as an alternative. However, owing to the hydration heat reactions and temperature affected shrinkage cracks related to concrete itself, a variety of studies to solve maintenance problems related to concrete slab track are underway. This study analysed characteristics of TQI values evaluating the track irregularity, searched the relationship between crack progress and TQI, and then evaluated of the correlation between the two values. Through this method, there is a need to complete the problems of the current method, only TQI is the main decision making tool in track maintenance, and also the need for the development of evaluation index considering the crack.