Tests for structural foundation design, for earthworks design, pavement design, and for earthworks specification are discussed, and it is noted that with correct site evaluation, better in-situ testing methods and a rationalized approach to laboratory testing, site investigation results will be of greater use than hitherto. For foundation strength, the parameters most frequently required are the undrained shear strength of the soil and the coefficients of volume change and consolidation. The results from laboratory testing indicate soil properties may vary considerably from in-situ values. Testing for earthworks is categorized into testing required for internal and external stability, and settlement estimation. Comments are made on frost susceptibility testing, the California Bearing Ratio tests, the determination of design parameters, and the reporting of results. Earthworks specification define the suitability limits and determine the upper limits of moisture content for the various classifications of soil encountered at the site.

  • Supplemental Notes:
    • This article appeared in Road Design which is a publication containing the Proceedings of Seminar X held at the University of Warwick, England.
  • Corporate Authors:

    Planning and Transport Res and Computation Co Ltd

    167 Oxford Street
    London W1R 1AH,   England 
  • Authors:
    • CEARNS, P J
  • Publication Date: 1975-7

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Filing Info

  • Accession Number: 00145016
  • Record Type: Publication
  • Report/Paper Numbers: P131
  • Files: TRIS
  • Created Date: Feb 1 1977 12:00AM