FACTOR OF SAFETY AND PROBABILITY OF FAILURE OF ROCKFILL EMBANKMENTS
The limit equilibrium method is applied to analyse the stability of rockfill embankments. Stability charts that utilize contours of zero critical acceleration factor are generated. These charts are valuable as design aids and are presented in a form amenable for the direct computation of the factor of safety, which is a more familiar parameter of stability analysis. Reliability theory is then applied in the form of a second moment format, to compute the probability of failure of a rockfill embankment. Strength parameters are characterized using 3 slightly different density functions, to study the effect of truncation on the probability of failure of the system. The use of logistic distribution is introduced, as a means of computing the failure probability of the structure without the aid of tables. The parameters necessary to compute both the factor of safety and its reliability have been evaluated and are presented in graphical form, in terms of common design variables. A wide spectrum of practical combinations of geometries and strength parameters are covered by the study.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
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Corporate Authors:
Thomas Telford Limited
London, United Kingdom -
Authors:
- Barbosa, M R
- Morris, D V
- Sarma, S K
- Publication Date: 1989-9
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 471-483
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Serial:
- GEOTECHNIQUE
- Volume: 39
- Issue Number: 3
- Publisher: Thomas Telford Limited
- ISSN: 0016-8505
Subject/Index Terms
- TRT Terms: Charts; Density; Embankments; Failure; Rockfills; Safety factors; Stability (Mechanics); Stability analysis; Strength of materials
- Old TRIS Terms: Embankment stability
- Subject Areas: Geotechnology; Highways; Safety and Human Factors; I42: Soil Mechanics;
Filing Info
- Accession Number: 00488884
- Record Type: Publication
- Files: TRIS, ATRI
- Created Date: Oct 31 1989 12:00AM