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Bulletin of Engineering Geology and the Environment
Published in: Bulletin of Engineering Geology and the Environment 6/2020

06-02-2020 | Original Paper

System reliability analysis of soil nail wall using random finite element method

Authors: A. Johari, A. Khosravi Hajivand, S.M. Binesh

Published in: Bulletin of Engineering Geology and the Environment | Issue 6/2020

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Abstract

Soil nail wall is a compound system which for safety margin determination, consideration of safety factors of its components and their correlations is required. In this paper, considering a real site using the random finite element method (RFEM), the reliability indices of global stability, lateral displacement stability, tensile strength, and pullout resistance stability as components of the soil nail wall system are obtained. In another section of the paper, using the sequential compounding method (SCM), the importance of the mentioned stability modes and their effects on system reliability and system probability of failure are represented. Results show that the most considerable interdependence is between the global and lateral displacement stabilities. Among the reliability indices of the components, the minimum one is attributed to the pullout resistance. Furthermore, the uppermost row of the nails has the most critical reliability index compared with the others. The locations of the slip surfaces and nail intersections varied from 0.05–0.90 of the nail length, which means that the uncertainty of the soil parameters has the most significant effect on the pullout resistance safety factor of the nails. The performance level of the soil nail wall decreases from below average to poor when the soil nail wall is considered to be a system with series components.
previous article Probabilistic stability analysis of earth dam slope under transient seepage using multivariate adaptive regression splines
next article Exploring spatial non-stationarity in the relationships between landslide susceptibility and conditioning factors: a local modeling approach using geographically weighted regression

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Appendix
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Metadata
Title
System reliability analysis of soil nail wall using random finite element method
Authors
A. Johari
A. Khosravi Hajivand
S.M. Binesh
Publication date
06-02-2020
Publisher
Springer Berlin Heidelberg
Published in
Bulletin of Engineering Geology and the Environment / Issue 6/2020
Print ISSN: 1435-9529
Electronic ISSN: 1435-9537
DOI
https://doi.org/10.1007/s10064-020-01740-y

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