DEFORMATIONS OF STATISTICALLY HETEROGENEOUS EARTH STRUCTURES

An analytical investigation of the statistical uncertainty of earth structure deformation is reported. Soil slopes are modeled as isotropic linearly elastic materials, but the elastic properties vary spatially in a statistically heterogeneous manner. This investigation illustrates the use of the finite element technique and statistical concepts to estimate the uncertainty of deformations by simulating soil heterogeneity with a random distribution of moduli properties for the elements. Three excavated earth slope angles and three embankment slope angles were analyzed with three coefficients of variation of the elastic modulus; two values of poisson's ratio were used for the majority of the cases studied. The results of the analyses provide a quantitative measure of the uncertainty in the deformations, as influenced by spatial variations within earth structures. The advantages to be gained by analyzing the slopes in this statistical manner are suggested with the results of this study. /Author/TRRL/

  • Availability:
  • Corporate Authors:

    Southeast Asian Society of Soil Engineering

    P.O. Box 2754
    Bangkok,   Thailand 
  • Authors:
    • Kraft, L M
    • Yeung, T Y
  • Publication Date: 0

Media Info

  • Features: Figures; References;
  • Pagination: p. 39-52
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00125137
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Nov 18 1975 12:00AM