CONSTRUCTIONAL DEFORMATIONS IN ROCKFILL DAM

In this closure of discussion, the authors point out that in a particular simple example (presented by a discusser) with Poisson's ratio close to 0.5 and where an exact solution is available, trapezoidal elements with a varying strain give a much better agreement with the exact solution than constant strain triangular elements of similar size. It is also considered that to obtain significantly better predictions of displacements, more needs to be known about the stress-strain behavior of fill material under stress conditions encountered in embankments. It is pointed out that before a relationship between the lateral deformation and factor of safety of an embankment slope derived from finite element analyses could be used with confidence in embankment design, considerable information about the lateral deformation during construction of different types of embankments must be built up. In particular, the movements of embankments with low factors of safety must be measured. Data concerning pore pressure deformation, the angle of shearing resistance of the rockfill, the use of the Morgenstern and Price analysis for noncircular slip surfaces, and the calculation of factor of safety are briefly discussed.

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  • Supplemental Notes:
    • Paper presented February, 1973, by Arthur Penman and Andrew Charles, Proceeding Paper 0560.
  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  USA  10017-2398
  • Discussers:
    • PENMAN, A
    • Charles, A
  • Publication Date: 1974-10

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Filing Info

  • Accession Number: 00265147
  • Record Type: Publication
  • Report/Paper Numbers: Proc Paper 10838 Proceeding
  • Files: TRIS
  • Created Date: Feb 27 1975 12:00AM