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Investigation on the Temperature Characteristics of CWR for the Climate Change  

Choi, Jin-Yu (한국철도기술연구원 차륜궤도연구실)
Lee, Gyu-Sei (선문대학교 토목공학과)
Bae, Hyun-Ung (충남대학교 토목공학과)
Park, Beom-Ho (충남대학교 토목공학과)
Lim, Nam-Hyoung (충남대학교 토목공학과)
Publication Information
Journal of the Korean Society for Railway / v.13, no.2, 2010 , pp. 179-185 More about this Journal
Abstract
In order to secure safety for the buckling and fracture of continuous welded rail and improve the efficiency of maintenance work, it is very important that grasp the characteristics of rail temperature. Recently, the maximum air temperature in summer season rises gradually and the minimum air temperature in winter season is decreasing gradually due to the climate change. Therefore, these phenomenon influences in the change amount of yearly rail temperature and can cause change of laying and maintenance temperature. In this study, actual measurement of rail temperature including climatic factors is carried out by constructing the temperature and climate measurement system as realistic as possible. Through the intensive investigation of actual data, it is founded that the existing prediction formulas for rail temperature may be used only in certain climatic conditions (certain combination of climatic factors). It may be more reasonable that the rail temperature considering actual climatic factors in site is predicted on probabilistic approach.
Keywords
Continuous welded rail; Rail temperature; Climatic conditions; Climatic factor;
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연도 인용수 순위
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