3D Numerical modeling of Soft soil Improved by Rigid Inclusions Supported an Embankment

Abstract A three-dimensional finite element model suggested to determine the settlements and stresses of an embankment placed on soft soil reinforced by rigid inclusions. To make it simple the layers of soil and the embankment are supposed to be horizontal in a semi-infinite medium and the base of...

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Main Authors: MESSIOUD Salah, NEGHMOUCHE Yassamina
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2022-05-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_173990_609e298003b7c7184964d7911d92f1bc.pdf
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author MESSIOUD Salah
NEGHMOUCHE Yassamina
author_facet MESSIOUD Salah
NEGHMOUCHE Yassamina
author_sort MESSIOUD Salah
collection DOAJ
description Abstract A three-dimensional finite element model suggested to determine the settlements and stresses of an embankment placed on soft soil reinforced by rigid inclusions. To make it simple the layers of soil and the embankment are supposed to be horizontal in a semi-infinite medium and the base of the soft soil is supposed to be rigid (bedrock). The interacting elements of the model are supposed to be elastic. The determination of the behavior of the soil-inclusions-embankment system was realized according to the construction phases of the embankment layers. The settlements and stresses were calculated according to construction phases of the embankment layers. At the end of each calculation phase, the stress field and the displacement field are extracted. The values are then introduced into the model the beginning of the next phase. The obtained results are presented in terms of the (settlement) vertical displacements and vertical stresses for the elementary cell and the global model respectively. This study allows the observation of three-dimensional interactions; the mechanisms of load transfer and the interaction between the different zones of the embankment. The numerical calculations are much lower than those measured in situ. A verification calculation on the stresses transmitted by the rigid inclusion shows that only 90% of the total load is applied with the numerical calculation.
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spelling doaj.art-20831bb1a6a0441fbd51ccfc4788ab982024-01-31T14:27:48ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582022-05-0140563664810.30684/etj.2021.132023.10831739903D Numerical modeling of Soft soil Improved by Rigid Inclusions Supported an EmbankmentMESSIOUD Salah0NEGHMOUCHE Yassamina1LGCE, Université Mohammed Seddik Benyahia BP 98 Ouled aissaLGCE, Université Mohammed Seddik Benyahia BP 98 Ouled aissaAbstract A three-dimensional finite element model suggested to determine the settlements and stresses of an embankment placed on soft soil reinforced by rigid inclusions. To make it simple the layers of soil and the embankment are supposed to be horizontal in a semi-infinite medium and the base of the soft soil is supposed to be rigid (bedrock). The interacting elements of the model are supposed to be elastic. The determination of the behavior of the soil-inclusions-embankment system was realized according to the construction phases of the embankment layers. The settlements and stresses were calculated according to construction phases of the embankment layers. At the end of each calculation phase, the stress field and the displacement field are extracted. The values are then introduced into the model the beginning of the next phase. The obtained results are presented in terms of the (settlement) vertical displacements and vertical stresses for the elementary cell and the global model respectively. This study allows the observation of three-dimensional interactions; the mechanisms of load transfer and the interaction between the different zones of the embankment. The numerical calculations are much lower than those measured in situ. A verification calculation on the stresses transmitted by the rigid inclusion shows that only 90% of the total load is applied with the numerical calculation.https://etj.uotechnology.edu.iq/article_173990_609e298003b7c7184964d7911d92f1bc.pdffinite elements,,,،,؛rigid inclusions,,,،,؛soft soil,,,،,؛settlement,,,،,؛embankment
spellingShingle MESSIOUD Salah
NEGHMOUCHE Yassamina
3D Numerical modeling of Soft soil Improved by Rigid Inclusions Supported an Embankment
Engineering and Technology Journal
finite elements,,
,،,؛rigid inclusions,,
,،,؛soft soil,,
,،,؛settlement,,
,،,؛embankment
title 3D Numerical modeling of Soft soil Improved by Rigid Inclusions Supported an Embankment
title_full 3D Numerical modeling of Soft soil Improved by Rigid Inclusions Supported an Embankment
title_fullStr 3D Numerical modeling of Soft soil Improved by Rigid Inclusions Supported an Embankment
title_full_unstemmed 3D Numerical modeling of Soft soil Improved by Rigid Inclusions Supported an Embankment
title_short 3D Numerical modeling of Soft soil Improved by Rigid Inclusions Supported an Embankment
title_sort 3d numerical modeling of soft soil improved by rigid inclusions supported an embankment
topic finite elements,,
,،,؛rigid inclusions,,
,،,؛soft soil,,
,،,؛settlement,,
,،,؛embankment
url https://etj.uotechnology.edu.iq/article_173990_609e298003b7c7184964d7911d92f1bc.pdf
work_keys_str_mv AT messioudsalah 3dnumericalmodelingofsoftsoilimprovedbyrigidinclusionssupportedanembankment
AT neghmoucheyassamina 3dnumericalmodelingofsoftsoilimprovedbyrigidinclusionssupportedanembankment