CONSOLIDATION OF NORMALLY CONSOLIDATED CLAY

Raymond discusses the paper by Barden and Berry, and suggests some areas for further clarification such as an indication of how the value of b and c can be obtained, in order to avoid using Terzaghi's theory, and that the effect of depth for deep deposits of soil must not be ignored. The derivation of the authors' solutions and compression index is considered. Sundaram clarifies certain points in the authors' treatment of one-dimensional consolidation of normally consolidated and saturated clay under low pressure. One point dealt with is the permeability relationship during the consolidation process and the effect of a constant head or where the heads causing flow do not vary appreciably. An explanation is sought for the authors' claim that the theory of Davis and Raymond is in essential agreement with their experimental results. Leonards and Altschaeffl mention the exceptions to the Terzaghi assumptions, i.e. that compressibility is non-linear, and that permeability varies during consolidation. Secondary compressions are discussed, as is the seeming contradiction between the authors' papers with regards to the nonlinear relationship computed by t sub 90 using the Terzaghi theory and nonlinear theory. A discussion of the agreement between the non-linear theory and the rheological model is included.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  USA  10017-2398
  • Discussers:
    • RAYMOND, G P
    • Sundaram, P N
    • Leonards, G A
  • Publication Date: 1966-7

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Filing Info

  • Accession Number: 00095887
  • Record Type: Publication
  • Report/Paper Numbers: Discussion
  • Files: TRIS
  • Created Date: Jun 10 1975 12:00AM