장대레일 궤도의 선로조건에 따른 좌굴확률 민감도 해석

초록

Buckling of CWR track is effected track parameters of high uncertainty, such rail temperature, rail neutral temperature, ballast resistance, track irregularity, etc., changing sensitively in accordance with climatic conditions and maintenance work. In this study, buckling probability assessment program is developed to reflect uncertainty of CWR through probabilistic approach. And sensitivity analysis of buckling probability as rail conditions of track curve radius and longitudinal resistance of ballast is carried out.