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- Title
Research on Fitting of High-speed Railway Post-earthquake Line Repair Based on Deformation Analysis.
- Authors
YANG Jianxun
- Abstract
Aiming at the repair of the damaged line caused by the earthquake disaster on the high-speed railway ballastless track line, this paper, starting from a comprehensive analysis of the track deformation characteristics, studies the reconstruction of post-disaster line geometry based on the principle of conforming to the deformation trend and lays the foundation for the overall repair plan of the line. Meanwhile, it studies the constraints on the fitting of the long straight section of high-speed railway and the technical route and method for fitting and reconstruction of high smoothness track line. Fitting line reconstruction scheme is put forward based on the post-earthquake deformation state analysis of Daliang Tunnel of Lanzhou-Xinjiang High-speed Railway segment line. The scheme discusses the element parameters of priority of "S" shaped curve joints segment line at fault breaks, and the concept of double constraints with small folding angle and side length introduced to the long line fitting, which can provide references for the similar line repair. And it is necessary to supplement the technical gap in the definition of long line of ballastless track line at present. The technical route of plane line shape visual fitting and reconstruction with virtual transformation is adopted to visualize the microscopic deformation, which is usually difficult to be seen directly, and observe and learn the details of line deformation. The efficiency and quality of straight line shape fitting and reconstruction can be improved through accurate manual judgment and active intervention.
- Subjects
HIGH speed trains; RAILROAD maintenance &; repair; RAILROAD accidents; JUDGMENT (Psychology); EARTHQUAKES; REPAIRING
- Publication
Railway Standard Design, 2023, Vol 67, Issue 8, p30
- ISSN
1004-2954
- Publication type
Article
- DOI
10.13238/j.issn.1004-2954.202207150001