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Development of fragility functions for slope instability analysis.
- Source :
-
Landslides . Feb2015, Vol. 12 Issue 1, p165-175. 11p. - Publication Year :
- 2015
-
Abstract
- This paper presents a methodology for constructing fragility functions to characterise slope stability under a range of catastrophic earthquakes and rainfalls. The procedures for creating fragility functions, including the first-order reliability method (FORM) and the copula-based sampling method (CBSM), are demonstrated using a selection of typical slopes. The most common failure modes are included, such as the shallow sliding of an infinite slope, circular slip surface of a homogeneous slope, and tetrahedral wedge failure in a rock slope. Owing to the proposed approach, the fragility function can be applied to quantify the failure probabilities over a range of loading conditions with ease, as these are attributed to a function, rather than a design point. The advantage of these definitions is that the uncertainties of correlated soil shear strengths can be incorporated into the reliability models. The established procedure can provide a basis for describing vulnerable behaviour of a slope under various loading conditions and geometries. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1612510X
- Volume :
- 12
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Landslides
- Publication Type :
- Academic Journal
- Accession number :
- 100883436
- Full Text :
- https://doi.org/10.1007/s10346-014-0536-3