BEARING CAPACITY OF PURELY COHESIVE SOILS WITH A NONHOMOGENEOUS STRENGTH DISTRIBUTION

BASED ON PUBLISHED EVIDENCE, AN EMPIRICAL RULE IS POSTULATED TO DESCRIBE THE NONHOMOGENEOUS DISTRIBUTION OF UNDRAINED SHEAR STRENGTH WITH DEPTH FOR A PURELY COHESIVE SOIL. WITH THE USE OF THIS RULE THE ASSOCIATED SOIL BEARING CAPACITY FOR A STRIP LOAD OF UNIFORM INTENSITY IS DETERMINED FOR A VARIETY OF HOMOGENEOUS STRENGTH DISTRIBUTIONS, AND THE RESULTS ARE PRESENTED IN A SERIES OF CHARTS AND AN EQUATION. FOR SUCH SOILS, THE BEARING CAPACITY IS FOUND TO BE STRONGLY DEPENDENT ON THE WIDTH OF THE APPLIED LOAD, AND TO A LESSER EXTENT ON THE DEGREE OF OVERCONSOLIDATION OF THE UPPER ZONE. IN MOST CASES, BEARING CAPACITY VALUES DETERMINED ON THE BASIS OF THE POSTULATED STRENGTH DISTRIBUTION RULE DO NOT DIFFER SIGNIFICANTLY FROM VALUES OBTAINED BY A CONVENTIONAL ANALYSIS IN WHICH AN "AVERAGE" SHEAR STRANGTH IS ASSUMED CONSTANT WITH DEPTH; HOWEVER, THE PROPOSED METHOD AFFORDS GREATER RELIABILITY. IT IS FELT THAT THE RESULTS OBTAINED CAN BE REASONABLY EXTRAPOLATED TO LOADED AREAS OF DIFFERENT SHAPES. /AUTHOR/

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  • Supplemental Notes:
    • Paper sponsored by Committee on Mechanics of Earth Masses and Layered Systems, and presented at the 48th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Authors:
    • James, Clarence H C
    • Krizek, Raymond J
    • Baker, Wallace H
  • Publication Date: 1969

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 48-56
  • Monograph Title: Soil theories: reinforced earth, displacements, bearing, and seepage
  • Serial:

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Filing Info

  • Accession Number: 00235559
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Oct 21 1994 12:00AM