Proceedings of the Rocscience International Conference (RIC 2023)

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Probabilistic Analysis of an Embankment Under Extreme Rainfall Events Considering Spatial Variability of Soil Strength Parameters

Authors
Leila Baninajarian1, *, Sina Javankhoshdel1, Rashid Bashir2
1Rocscience, Inc, Toronto, ON, Canada
2York University, Toronto, ON, Canada
*Corresponding author. Email: Leila.baninajarian@rocscience.com
Corresponding Author
Leila Baninajarian
Available Online 8 November 2023.
DOI
10.2991/978-94-6463-258-3_8How to use a DOI?
Keywords
Slope stability; Spatial variability; Stochastic analysis
Abstract

Studies have shown that the stability of embankment slopes are influenced significantly by extreme rainfall events. The results of previous studies have also indicated that embankments built with fine materials such as silt are more susceptible to extreme rainfall events than those built with coarse materials. In most of these studies, soil parameters are assumed to be random variables. However, soil properties can vary spatially within a soil profile. This has been shown by several researchers carrying out stochastic analyses. Therefore, as a preliminary study, this research investigates the influence of spatial variability of soil strength parameters including friction angle and unit weight on the probability of failure. A simplistic assumption of constant hydraulic conductivity throughout the soil profile is made. The results are compared with analyses in which assumption of random variable soil parameters is made. The results show a reduction in the value of the probability of failure for the case with spatially variable soil strength parameters compared to the case with random soil parameters. Therefore, it can be concluded that considering spatial variability in soil strength parameters can provide a better representation of the actual site condition.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the Rocscience International Conference (RIC 2023)
Series
Atlantis Highlights in Engineering
Publication Date
8 November 2023
ISBN
10.2991/978-94-6463-258-3_8
ISSN
2589-4943
DOI
10.2991/978-94-6463-258-3_8How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Leila Baninajarian
AU  - Sina Javankhoshdel
AU  - Rashid Bashir
PY  - 2023
DA  - 2023/11/08
TI  - Probabilistic Analysis of an Embankment Under Extreme Rainfall Events Considering Spatial Variability of Soil Strength Parameters
BT  - Proceedings of the Rocscience International Conference  (RIC 2023)
PB  - Atlantis Press
SP  - 79
EP  - 89
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-258-3_8
DO  - 10.2991/978-94-6463-258-3_8
ID  - Baninajarian2023
ER  -