Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability
The present work investigates the interplay between building stiffness and replacement soil thickness and permeability, when an underlying swelling clay layer is subjected to continuous moisture using 3D numerical analysis. Simulations are done using the commercial finite element software ABAQUS, an...
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2021-06-01
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Series: | Ain Shams Engineering Journal |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447920302550 |
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doaj-efa81fbadd784292bcfb0673b04be3012021-06-07T06:47:13ZengElsevierAin Shams Engineering Journal2090-44792021-06-0112213991406Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeabilityDalia Abdelmoneim0Mohammed El-Taher1Sherif A.Y. Akl2Hussein H. El-Mamlouk3Soil Mechanics and Foundations Research Laboratory, Cairo University, EgyptGeotechnical Engineering, A’Sharqiyah University, OmanSoil Mechanics and Foundations Research Laboratory, Cairo University, Egypt; Corresponding author.Soil Mechanics and Foundations Research Laboratory, Cairo University, EgyptThe present work investigates the interplay between building stiffness and replacement soil thickness and permeability, when an underlying swelling clay layer is subjected to continuous moisture using 3D numerical analysis. Simulations are done using the commercial finite element software ABAQUS, and data of a reference clay (Regina Clay). The swelling of the clay is simulated as a result of water inundation, and not applied as assumed volume strains. An approximate method is used and validated in the analyses to represent dual constitutive variable data of the unsaturated clay in numerical analysis using single constitutive variable formulation available in the software. Results show the effects of replacement thickness and permeability. High permeability replacement is shown to transfer moistening uniformly to underlying clay while at the same time replacing effective clay thickness. Hence, high permeability is better at improving differential deformations; especially when the building is subjected to non-uniform inundation.http://www.sciencedirect.com/science/article/pii/S2090447920302550 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Dalia Abdelmoneim Mohammed El-Taher Sherif A.Y. Akl Hussein H. El-Mamlouk |
spellingShingle |
Dalia Abdelmoneim Mohammed El-Taher Sherif A.Y. Akl Hussein H. El-Mamlouk Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability Ain Shams Engineering Journal |
author_facet |
Dalia Abdelmoneim Mohammed El-Taher Sherif A.Y. Akl Hussein H. El-Mamlouk |
author_sort |
Dalia Abdelmoneim |
title |
Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability |
title_short |
Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability |
title_full |
Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability |
title_fullStr |
Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability |
title_full_unstemmed |
Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability |
title_sort |
modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability |
publisher |
Elsevier |
series |
Ain Shams Engineering Journal |
issn |
2090-4479 |
publishDate |
2021-06-01 |
description |
The present work investigates the interplay between building stiffness and replacement soil thickness and permeability, when an underlying swelling clay layer is subjected to continuous moisture using 3D numerical analysis. Simulations are done using the commercial finite element software ABAQUS, and data of a reference clay (Regina Clay). The swelling of the clay is simulated as a result of water inundation, and not applied as assumed volume strains. An approximate method is used and validated in the analyses to represent dual constitutive variable data of the unsaturated clay in numerical analysis using single constitutive variable formulation available in the software. Results show the effects of replacement thickness and permeability. High permeability replacement is shown to transfer moistening uniformly to underlying clay while at the same time replacing effective clay thickness. Hence, high permeability is better at improving differential deformations; especially when the building is subjected to non-uniform inundation. |
url |
http://www.sciencedirect.com/science/article/pii/S2090447920302550 |
work_keys_str_mv |
AT daliaabdelmoneim modellingofexpansiveclayinteractionwithskeletonstructuresconsideringtheeffectofreplacementpermeability AT mohammedeltaher modellingofexpansiveclayinteractionwithskeletonstructuresconsideringtheeffectofreplacementpermeability AT sherifayakl modellingofexpansiveclayinteractionwithskeletonstructuresconsideringtheeffectofreplacementpermeability AT husseinhelmamlouk modellingofexpansiveclayinteractionwithskeletonstructuresconsideringtheeffectofreplacementpermeability |
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