Abstract
The paper presents a computational procedure for reliability analysis of earth slopes for which the probabilistic critical slip surfaces have been determined considering spatial variability of soils. The effect of spatial variability has been taken into account based on a newly developed discretization model which is free from the shortcomings of the discretization models available in the literature and all these shortcomings are demonstrated numerically in this paper. The developed algorithm is based on the First Order Reliability Method coupled with the Spencer Method of Slices valid for limit equilibrium analysis of general slip surfaces. A case study of the Bois Brule Levee has been reanalyzed using the developed technique and several observations have been discussed. The result obtained in this study clearly shows that the proposed model is considerably more conservative than other available models.
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This research has been supported by the AORC Scheme of the INSPIRE Program of the Department of Science and Technology (DST), Govt. of India and the first author is employed as a INSPIRE Fellow with DST support. This support is gratefully acknowledged.
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Metya, S., Bhattacharya, G. Probabilistic Stability Analysis of the Bois Brule Levee Considering the Effect of Spatial Variability of Soil Properties Based on a New Discretization Model. Indian Geotech J 46, 152–163 (2016). https://doi.org/10.1007/s40098-015-0163-5
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DOI: https://doi.org/10.1007/s40098-015-0163-5