System Design of Broken Rail Monitoring for Urban Rail Transit Based on Ultrasonic-Guided Waves

With the complex conditions in urban rail transit, the rail in continual welded rail (CWR) may be broken in some sections. Track circuits in a traditional signal system can find the broken rail when this damage happens. However, after a state-of-the-art signal system — such as the Communication-Based Train Control System (CBTC) — was applied, the role of the track circuits disappeared. In this paper, the existing broken rail detection methods and technology were summarized. A monitoring system of broken rail for urban rail transit based on ultrasonic guided waves was proposed combined with automatic data collection and transmission technology. Considering the overall system, the level and frame structure of the system was analyzed. Moreover, the signal frequency of ultrasonic guided wave, the type and location of broken rail, and the data transmission methods were discussed. A large number of laboratory tests was carried on to determine different calibration conditions.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 381-388
  • Monograph Title: Challenges and Advances in Sustainable Transportation Systems

Subject/Index Terms

Filing Info

  • Accession Number: 01529061
  • Record Type: Publication
  • ISBN: 9780784413364
  • Files: TRIS, ASCE
  • Created Date: May 15 2014 3:02PM