The measurement of subgrade soil pressures from rail traffic by means of pressure cells is discussed. Records of 31 runs were used in this report. Theoretical pressures determined by the elastic theory and recorded pressures were integrated graphically for the 16-ft width of the pressure cell installation, thus obtaining average values of the equivalent vertical pressure. Recorded vertical pressures are in close agreement with theoretical maximum shear values and recorded maximum shear values. The elastic theory can be used satisfactorily for computing vertical stresses of this installation, but it does not give sufficient accuracy for predicting lateral pressure intensities and shearing stresses in earth masses. Steam powered locomotives produce higher pressure intensities than diesel locomotives. This pressure increase is in greater proportion than the corresponding increase in axle loads. The pressure cells are registering pressures and variations in pressure faithfully.

  • Corporate Authors:

    American Railway Engineering Association

    59 East Van Buren Street
    Chicago, IL  United States  60605
  • Publication Date: 0

Media Info

  • Pagination: 15 p.
  • Serial:
    • Volume: 54
    • Publisher: American Railway Engineering Association

Subject/Index Terms

Filing Info

  • Accession Number: 00052424
  • Record Type: Publication
  • Source Agency: Association of American Railroads
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM