Research Article
Sep 1982
Safety Factors for Probabilistic Slope Design
Publication: Journal of the Geotechnical Engineering Division
Volume 108, Issue 9
Abstract
Inconsistencies in present solution methods for slope stability problems under undrained conditions are noted and a first-order, second-moment, solution technique with a probabilistic base is suggested. The proposed procedure examines these problems with regard to the separate variables involved and utilizes partial safety factors which are proportional to the coefficient of variation of the pertinent parameters. For simplicity, a circular arc failure mechanism is assumed, and design acceptability is based on the derived value of a reliability measure, the safety index, which reflects the probability of occurrence of the assumed failure mechanism. Statistical data for the required load, resistance, and bias variables are presented. Using these, the safety index associated with current design techniques is determined, and the implications of its magnitude are examined. Sensitivity studies, performed to determine which variables have the greatest effect on design results are also described. Finally, partial safety factors are proposed for design corresponding to a desired failure probability.
Get full access to this article
View all available purchase options and get full access to this article.
Information & Authors
Information
Published In
Journal of the Geotechnical Engineering Division
Volume 108 • Issue 9 • September 1982
Pages: 1101 - 1118
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Sep 1982
Published online: Feb 11, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
Robert A. D'Andrea, M.ASCE
Assoc. Prof. of Civ. Engrg., Worcester Polytechnic Inst., Worcester, Mass
Dwight A. Sangrey, M.ASCE
Prof. and Head, Dept. of Civ. Engrg., Carnegie-Mellon Univ., Pittsburgh, Pa
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
Cited by
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
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.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
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.