Numerical study for optimal design of soil nailed embankment slopes

Abstract This paper presents a set of new required programmes written in format data using the built-in programming FISH language available in three-dimensional Fast Lagrangian Analysis of Continua software (FLAC3D). These script data files were developed, to overcome difficulties noted during the n...

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Main Authors: Rabah Derghoum, Mohamed Meksaouine
Format: Article
Language:English
Published: SpringerOpen 2021-06-01
Series:International Journal of Geo-Engineering
Subjects:
Online Access:https://doi.org/10.1186/s40703-021-00144-5
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author Rabah Derghoum
Mohamed Meksaouine
author_facet Rabah Derghoum
Mohamed Meksaouine
author_sort Rabah Derghoum
collection DOAJ
description Abstract This paper presents a set of new required programmes written in format data using the built-in programming FISH language available in three-dimensional Fast Lagrangian Analysis of Continua software (FLAC3D). These script data files were developed, to overcome difficulties noted during the nailed slope stability prediction. They established to analyse stability of general embankment slope cases under various soil nailing parameters design. To deal with 3D finite difference analysis results in terms of the factor of safety (FOS) and critical slip surface, both 2D finite difference and limit equilibrium (LEM) methods are also conducted. A comparison of the 3D and 2D results indicates that 2D analyses underestimate seriously stability predictions, notably in terms of the FOS. Therefore, it was concluded that, 3D analysis should be used as an alternative to the 2D analyses, even though it requires more time. Some useful conclusions are obtained from this work, which provides a good practice guidance for real life scenarios.
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spelling doaj.art-8b0d3511aaf3489d9a7e616827f4bd6b2022-12-21T22:55:24ZengSpringerOpenInternational Journal of Geo-Engineering2092-91962198-27832021-06-0112111810.1186/s40703-021-00144-5Numerical study for optimal design of soil nailed embankment slopesRabah Derghoum0Mohamed Meksaouine1Department of Civil Engineering, Université Frères MentouriDepartment of Hydraulic, Université Badji MokhtarAbstract This paper presents a set of new required programmes written in format data using the built-in programming FISH language available in three-dimensional Fast Lagrangian Analysis of Continua software (FLAC3D). These script data files were developed, to overcome difficulties noted during the nailed slope stability prediction. They established to analyse stability of general embankment slope cases under various soil nailing parameters design. To deal with 3D finite difference analysis results in terms of the factor of safety (FOS) and critical slip surface, both 2D finite difference and limit equilibrium (LEM) methods are also conducted. A comparison of the 3D and 2D results indicates that 2D analyses underestimate seriously stability predictions, notably in terms of the FOS. Therefore, it was concluded that, 3D analysis should be used as an alternative to the 2D analyses, even though it requires more time. Some useful conclusions are obtained from this work, which provides a good practice guidance for real life scenarios.https://doi.org/10.1186/s40703-021-00144-5Soil nailed embankment slopeLimit equilibrium method3D finite difference analysisStability predictionFISH language
spellingShingle Rabah Derghoum
Mohamed Meksaouine
Numerical study for optimal design of soil nailed embankment slopes
International Journal of Geo-Engineering
Soil nailed embankment slope
Limit equilibrium method
3D finite difference analysis
Stability prediction
FISH language
title Numerical study for optimal design of soil nailed embankment slopes
title_full Numerical study for optimal design of soil nailed embankment slopes
title_fullStr Numerical study for optimal design of soil nailed embankment slopes
title_full_unstemmed Numerical study for optimal design of soil nailed embankment slopes
title_short Numerical study for optimal design of soil nailed embankment slopes
title_sort numerical study for optimal design of soil nailed embankment slopes
topic Soil nailed embankment slope
Limit equilibrium method
3D finite difference analysis
Stability prediction
FISH language
url https://doi.org/10.1186/s40703-021-00144-5
work_keys_str_mv AT rabahderghoum numericalstudyforoptimaldesignofsoilnailedembankmentslopes
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