A RESEARCH TRIP FOR THE STUDY OF AXLE LOAD

In developing Brazil's Carajas Project it became apparent that rail life is of paramount importance in designing iron ore railways. A group from the Project and its consultants visited Africa, Australia, South America and Canada. It was confirmed that rail life is a function of axle load; that with heavy axle loads the annual costs of track maintenance have been high enough to warrant a reexamination of the assumption that economics favor specification of the largest capacity equipment available. For the Carajas Project a 27-ton axle load on 38-inch wheels was specified. Additional recommendations involved compaction and width of subgrade, high-quality drainage, curve superelevation based on loaded trains, control of lading so car axle load limits will not be exceeded, adoption of elastic rail fasteners, welded rail and a comprehensive track maintenance program.

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 1-12

Subject/Index Terms

Filing Info

  • Accession Number: 00303698
  • Record Type: Publication
  • Report/Paper Numbers: Session 312 Pap I.9 Conf Paper
  • Files: TRIS
  • Created Date: Feb 11 1980 12:00AM