LONG WELDED RAIL INVESTIGATIONS

The Western Region of British Railways has been carrying out valuable investigations into the behavior, control, and economic factors relating to long continuous lengths of welded rail. The test lengths of long welded rail in South Wales were subjected to apparatus for measuring and recording movements of the rail. Nine pairs of instrument stations 100 yd. apart were initially established with recording instruments grouped at a central point. The behavior of the track recorded was mainly longitudinal movement due to changes in temperature but transverse movement was also registered. Laboratory static tests were for resistance to longitudinal movement of a rail through its fastenings, and a dynamic testing machine was also evolved for equating track loading and deflection under the equivalent of the passage of a locomotive at 60 mph. Long continuous rail lengths carrying fast traffic must be provided with ample ballast and a firm foundation. Maintenance must be to a first-class alignment and special attention must be paid to the maintenance of the fastenings. More accurate means of costing maintenance will also have to be devised for ascertaining the economics of long welded rails.

  • Corporate Authors:

    Temple Press Limited

    161-166 Fleet Street
    Longon EC4,   England 
  • Publication Date: 1957-4-26

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  • Accession Number: 00037629
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 4 1994 12:00AM