Probabilistic Stability Design Charts for Shallow Passive Trapdoors in Spatially Variable Clays
Article
Article Title | Probabilistic Stability Design Charts for Shallow Passive Trapdoors in Spatially Variable Clays |
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ERA Journal ID | 4202 |
Article Category | Article |
Authors | Shiau, Jim and Keawsawasvong, Suraparb |
Journal Title | International Journal of Geomechanics |
Journal Citation | 23 (6) |
Article Number | 04023069 |
Number of Pages | 14 |
Year | 2023 |
Publisher | American Society of Civil Engineers |
Place of Publication | United States |
ISSN | 1532-3641 |
1943-5622 | |
Digital Object Identifier (DOI) | https://doi.org/10.1061/IJGNAI.GMENG-7902 |
Web Address (URL) | https://ascelibrary.org/doi/10.1061/IJGNAI.GMENG-7902 |
Abstract | Geotechnical engineers are faced with great uncertainty with regard to the stability design of soil structures such as retaining walls, foundations, and slope stability. Instead of using a deterministic approach by replacing the design parameter with a single mean number, Monte Carlo simulations could be used to provide better decisions by considering all possible outcomes under parametric uncertainty. This paper studies probabilistic failures of classical passive trapdoors in shallow depths with spatially random soils. The effects of soil strength variability are investigated for various spatial correlation lengths and trapdoor depths using the latest adaptive finite-element upper-bound limit analysis with second-order cone programming. In addition, probabilistic stability results are compared with those published in renowned literature, and a comprehensive probability of design failure (PF) charts is developed for a practical range of deterministic factors of safety. The extensive results reported in this paper would be of great interest to engineering practitioners because better decisions can be made in the design process and design confidence improved. |
Keywords | Limit analysis; Probabilistic analysis; Random field; Trapdoor stability |
ANZSRC Field of Research 2020 | 400502. Civil geotechnical engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Engineering |
Thammasat University, Thailand |
https://research.usq.edu.au/item/z161z/probabilistic-stability-design-charts-for-shallow-passive-trapdoors-in-spatially-variable-clays
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