Abstract
The use of partial safety factors has, with the adaptation of the Eurocodes, become the dominant safety concept, also for slope stability in most European countries. The article discusses the partial safety factor approach based on considerations of uncertainties involved and consequences of failure. Partial safety factors are calculated based on reliability theory, following first the present ideas of the Eurocodes, and second an alternative approach aimed to improve the shortcomings in the code. In the alternative approach, all uncertainties are placed on the material safety factor, which are then calculated for different target reliability index values. Two simple examples are presented, where the differences of the two approaches are outlined.
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References
European Committee for Standardization, CEN (2002) EN 1990 Eurocode: basis of structural design. European Committee for Standardization, Brussels
European Committee for Standardization, CEN (2004) EN 1997-1 Eurocode 7: geotechnical design. Part 1: general rules. European Committee for Standardization, Brussels
Lacasse S, Nadim F (1996) Uncertainties in characterizing soil properties. In: Theory to practice. Proceedings of uncertainty ’96, Madison, Wisconsin 1996, Geotechnical special publication 58. American Society of Civil Engineers, New York, pp 49–75
Leroueil S, Magnan J-P, Tavenas F (1990) Embankments of soft clays. Ellis Horwood, Chichester
Phoon K-K, Kulhawy FH (1999a) Characterization of geotechnical variability. Can Geotech J 36:612–624
Phoon K-K, Kulhawy FH (1999b) Evaluation of geotechnical property variability. Can Geotech J 36:625–639
Poutanen T (2011) Calculation of partial safety factors. In: Faber MH, Köhler J, Nishijima K (eds) Applications of statistics and probability in civil engineering. Taylor & Francis Group, London
Poutanen T (2013) Load combination. In: IABSE workshop on safety, Helsinki, 14–15 February 2013
Acknowledgments
The authors would like to thank Dr. Suzanne Lacasse for her valuable comments when reviewing this article.
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© 2014 Springer Science+Business Media Dordrecht
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Länsivaara, T., Poutanen, T. (2014). Safety Concepts for Slope Stability. In: L'Heureux, JS., Locat, A., Leroueil, S., Demers, D., Locat, J. (eds) Landslides in Sensitive Clays. Advances in Natural and Technological Hazards Research, vol 36. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-7079-9_31
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DOI: https://doi.org/10.1007/978-94-007-7079-9_31
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