기존선 급곡선부 장대레일 좌굴의 신뢰성 평가 및 안정성 확보방안 연구

초록

This paper presents a evaluation method, based on probability concept, of buckling stability of CWR on sharp curve of existing railway line. In order to draw up the practical way for CWR appropriate to the local site, the important factors effecting buckling of CWR such as uncertain properties of in-site track structure, train operation conditign, and temperature condition are systematically considered. The effects of the enhancing methods of track structure upon the improvement of track buckling stability are analyzed using the presented method respectively. Based on the analysis results, the practical solutions which can insure the stability for buckling of CWR on sharp curve of existing railway line are presented in accordance with the respective radius of curve.

키워드