EARTH SLOPE RELIABILITY BY A LEVEL-CROSSING METHOD

An approximate formulation for the reliability analysis of earth slopes was derived by transforming the slope reliability analysis problem into a level-crossing problem, solved approximately by finding the expected number of minima of the safety margin (process) that lie below zero. The main feature of the solution is that, in effect, it considers the slope as a series system with an infinite number of (correlated) failure modes. The formulation was used to estimate the probability of failure of specific earth slopes. The results obtained imply that the use of the failure mode of least reliability to approximate the probability of failure of the slope may be highly unconservative and may predict incorrectly even the signs of changes in the slope reliability with changes in parameter values. /ASCE/

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  • Supplemental Notes:
    • Presented at the ASCE Specialty, Conference on Probabilistic Methods in Engineering, Stamford, California, 24-26 June 1974.
  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Catalan, J M
    • Cornell, C A
  • Publication Date: 1976-6

Media Info

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Filing Info

  • Accession Number: 00141305
  • Record Type: Publication
  • Report/Paper Numbers: ASCE #12214 Proceeding
  • Files: TRIS
  • Created Date: Oct 26 1976 12:00AM