Research Article
Jun 1982
Probabilistic Model of Progressive Failure of Slopes
Publication: Journal of the Geotechnical Engineering Division
Volume 108, Issue 6
Abstract
A probabilistic model for the progression of failure in a soil slope is presented. Failure progression is defined as a spatial and continuous extension of the failure zone along a potential slip surface in a statistically homogeneous medium. The local safety margin of any segment of the slip surface is assumed to follow a normal distribution; cohesive and frictional parameters of shear strength being considered as independent random variables. The joint distribution of the safety margin of any two adjacent segments of the slip surface is assumed to be bivariate normal. After defining the model and outlining the rules of transition, expressions for the probability of failure progression are derived. The model and its formulation are illustrated by a worked example and the significance of the proposed model is discussed. The suggested approach to the study of progressive failure gives insight into the interdependence of the stability of adjacent elements or sections of a soil mass. Consequently, it is potentially valuable in clarifying the real behavior of soil masses and expecially slopes.
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Published In
Journal of the Geotechnical Engineering Division
Volume 108 • Issue 6 • June 1982
Pages: 803 - 819
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Jun 1982
Published online: Feb 11, 2021
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Robin N. Chowdhury, M.ASCE
Reader, Dept. of Civ. Engrg., Univ. of Wollongong, New South Wales 2500, Australia
Dimitri A-Grivas, M.ASCE
Assoc. Prof., Rensselaer Polytechnic Inst., Troy, N.Y. 12181
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.