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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Probabilistic Calibration of Resistance Factors for Slope Stability
Significant research has been performed in recent years to develop load and resistance factor design (LRFD) methods for geotechnical applications. However, one lacking aspect of this work is application to design of earth slopes, including consideration of the overall stability of earth retaining structures. A procedure for implementing LFRD for slope stability evaluations is proposed in this paper, using "probabilistically calibrated" resistance factors established to achieve a range of target probabilities of failure. Results of probabilistic calibrations demonstrate that LRFD methods can be used for overall stability evaluations without unnecessary complications. Appropriate resistance factors were found to be insensitive to slope geometry but dependent upon the relative magnitude of soil strength parameters. Fortunately this dependence can be practically addressed using Janbu's dimensionless stability parameter, λcφ, which in turn allows LRFD techniques to be feasibly implemented for slope stability applications.
Probabilistic Calibration of Resistance Factors for Slope Stability
Significant research has been performed in recent years to develop load and resistance factor design (LRFD) methods for geotechnical applications. However, one lacking aspect of this work is application to design of earth slopes, including consideration of the overall stability of earth retaining structures. A procedure for implementing LFRD for slope stability evaluations is proposed in this paper, using "probabilistically calibrated" resistance factors established to achieve a range of target probabilities of failure. Results of probabilistic calibrations demonstrate that LRFD methods can be used for overall stability evaluations without unnecessary complications. Appropriate resistance factors were found to be insensitive to slope geometry but dependent upon the relative magnitude of soil strength parameters. Fortunately this dependence can be practically addressed using Janbu's dimensionless stability parameter, λcφ, which in turn allows LRFD techniques to be feasibly implemented for slope stability applications.
Probabilistic Calibration of Resistance Factors for Slope Stability
Loehr, J. Erik (Autor:in) / Huaco, Daniel R. (Autor:in)
International Foundation Congress and Equipment Expo 2009 ; 2009 ; Orlando, Florida, United States
10.03.2009
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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