Calculation of the stress increment in a soil mass is an important step in settlement analysis. Although may well-known elastic solutions are used for calculating the stress increments because of their simplicity, widely used solutions such as Boussinesqor Westergaard, are based on the assumptions of surface loading and semi-infinite medium. It is suggested that for cases in which the ratio of the foundation width to the depth of soil profile is large, the use of the Westergaard-Mindlin solution will underestimate the stress increment and settlement because the rigid base effect is not properly considered. Since there is no readily available solution for the calculation of stress distribution that will take into account both embedment and rigid base effects, the discussors suggest that for a shallow soil profile where the rigid base can be important, one may use the surface Westergaard solution to obtain conservative settlement predictions. If the stress distribution theories were used indiscriminately, the difference in settlement predictions could be as much as 34%.

  • Availability:
  • Supplemental Notes:
    • Refer to ASCE Proceeding Paper 12227 by K Bhushan, and SC Haley, July 1976.
  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Discussers:
    • Chen, WWH
    • Huang, Wei
  • Publication Date: 1977-7

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00165892
  • Record Type: Publication
  • Report/Paper Numbers: ASCE 13054
  • Files: TRIS
  • Created Date: Mar 29 1978 12:00AM