IMPLEMENTATION OF A BEARING CAPACITY DESIGN PROCEDURE FOR RAILWAY SUBGRADES: A CASE STUDY

Application of a bearing capacity design approach to evaluating railway subgrades is illustrated. The bearing capacity design approach was developed as part of an overall research program to assess the stability of track subgrades. The development of the design procedure was published earlier. The additional strength of the subgrade soil resulting from matric suction was incorporated into the bearing capacity design procedure. The bearing capacity design procedure was used as a complementary tool in conjunction with stress analyses and slope stability analyses for the Canadian Pacific Railways Floodway Trackage, Emerson Subdivision, Winnipeg, Manitoba, Canada. Stresses in the subgrade were predicted by using the GEOTRACK computer program. The ultimate bearing capacity was determined by using bearing capacity theories modified to accommodate layered track systems and the additional strength of the soil resulting from soil suction. Slope stability modeling of the embankment slopes completed the analyses. Results of the complementary analyses were used to select appropriate design alternatives.

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 191-197
  • Monograph Title: Geotechnical engineering 1990 - soils, geology and foundations
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00607765
  • Record Type: Publication
  • ISBN: 0309050642
  • Files: TRIS, TRB
  • Created Date: Apr 30 1991 12:00AM