METHODS AND PROCEDURES FOR LAYING AND MAINTAINING CONTINUOUS WELDED RAIL TO ATTAIN LATERAL TRACK STABILITY

Lateral track stability is attained by proper methods and procedures for laying and maintaining continuous welded rail (CWR). CWR must be anchored at or adjusted for a rail temperature of 95 deg F or higher either by mechanical heating or by natural temperatures. After CWR has been installed, it should not be raised or disturbed at rail temperatures higher than the anchored or adjusted rail temperature except when necessary precautions are taken. If the track buckles while it is being worked because of expansion due to temperature, it must be cut, adjusted, and properly tamped. When thermite welding is performed, a defective rail is changed, or a plug is installed, precautions must be taken to not add rail to the track. Additional rail creates undesirable compressive forces when increased temperatures cause elongation of the rail. The proper methods and procedures to attain lateral stability have been generated from the use of CWR in track for the past 30 years.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1991/1289/1289-009.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=METHODS+AND+PROCEDURES+FOR+LAYING+AND+MAINTAINING+CONTINUOUS+WELDED+RAIL+TO+ATTAIN+LATERAL+TRACK+STABILITY&author=B.+Willbrant&publication_year=1991
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1289, Lateral Track Stability 1991: Proceedings of a Conference, May 15-17, 1990, St. Louis, Missouri. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Willbrant, Bruce G
• Conference:
  • Conference on Lateral Track Stability, 1990, St Louis, Missouri, USA
• Publication Date: 1991

Media Info

• Features: Figures;
• Pagination: p. 83-88
• Monograph Title: Lateral track stability 1991: proceedings of a Conference, May 15-17 1990, St Louis, Missouri, USA
• Serial:
  • Transportation Research Record
  • Issue Number: 1289
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Buckling; Continuous welded rail; Maintenance of way; Prevention; Railroad tracks; Stability (Mechanics); Temperature
• Uncontrolled Terms: Laying
• Old TRIS Terms: Lateral track stability
• Subject Areas: Design; Highways; Railroads; Security and Emergencies;

Filing Info

• Accession Number: 00611111
• Record Type: Publication
• ISBN: 0309050685
• Files: TRIS, TRB
• Created Date: Jul 31 1991 12:00AM