Impact of wall movements on the location of passive Earth thrust

The general assumption of linear variation of earth pressures with depth on retaining structures is still controversial; investigations are yet required to determine those distributions of the passive earth pressure (PEP) accurately and deduce the corresponding centroid location. In particular, for...

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Autores principales:	Bouali Meriem F., Karkush Mahdi O., Bouassida Mounir
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	passive pressure numerical analysis rotation translation movement wall Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/dfa77d3b0ec64fe4bb2a2746839321ab
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spelling	oai:doaj.org-article:dfa77d3b0ec64fe4bb2a2746839321ab2021-12-05T14:10:48ZImpact of wall movements on the location of passive Earth thrust2391-544710.1515/geo-2020-0248https://doaj.org/article/dfa77d3b0ec64fe4bb2a2746839321ab2021-05-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0248https://doaj.org/toc/2391-5447The general assumption of linear variation of earth pressures with depth on retaining structures is still controversial; investigations are yet required to determine those distributions of the passive earth pressure (PEP) accurately and deduce the corresponding centroid location. In particular, for rigid retaining walls, the calculation of PEP is strongly dependent on the type of wall movement. This paper presents a numerical analysis for studying the influence of wall movement on the PEP distribution on a rigid retaining wall and the passive earth thrust location. The numerical predictions are remarkably similar to existing experimental works as recorded on scaled test models and full-scale retaining walls. It is observed that the PEP varies linearly with depth for the horizontal translation, but it is nonlinear when the movement is rotational about the top of the retaining wall. When rotation is around the top of the wall, the resultant of PEP is located at a depth that varies between 0.164 and 0.259H of the wall height measured from the base of the wall, which is lesser than 1/3 of the wall height. The passive earth thrust location is highly affected by the soil–wall friction angle, especially when the friction angle of the backfill material increases. Despite the herein presented results, further experiments are recommended to assess the corresponding numerical predictions.Bouali Meriem F.Karkush Mahdi O.Bouassida MounirDe Gruyterarticlepassive pressurenumerical analysisrotationtranslation movementwallGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 570-581 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	passive pressure numerical analysis rotation translation movement wall Geology QE1-996.5
spellingShingle	passive pressure numerical analysis rotation translation movement wall Geology QE1-996.5 Bouali Meriem F. Karkush Mahdi O. Bouassida Mounir Impact of wall movements on the location of passive Earth thrust
description	The general assumption of linear variation of earth pressures with depth on retaining structures is still controversial; investigations are yet required to determine those distributions of the passive earth pressure (PEP) accurately and deduce the corresponding centroid location. In particular, for rigid retaining walls, the calculation of PEP is strongly dependent on the type of wall movement. This paper presents a numerical analysis for studying the influence of wall movement on the PEP distribution on a rigid retaining wall and the passive earth thrust location. The numerical predictions are remarkably similar to existing experimental works as recorded on scaled test models and full-scale retaining walls. It is observed that the PEP varies linearly with depth for the horizontal translation, but it is nonlinear when the movement is rotational about the top of the retaining wall. When rotation is around the top of the wall, the resultant of PEP is located at a depth that varies between 0.164 and 0.259H of the wall height measured from the base of the wall, which is lesser than 1/3 of the wall height. The passive earth thrust location is highly affected by the soil–wall friction angle, especially when the friction angle of the backfill material increases. Despite the herein presented results, further experiments are recommended to assess the corresponding numerical predictions.
format	article
author	Bouali Meriem F. Karkush Mahdi O. Bouassida Mounir
author_facet	Bouali Meriem F. Karkush Mahdi O. Bouassida Mounir
author_sort	Bouali Meriem F.
title	Impact of wall movements on the location of passive Earth thrust
title_short	Impact of wall movements on the location of passive Earth thrust
title_full	Impact of wall movements on the location of passive Earth thrust
title_fullStr	Impact of wall movements on the location of passive Earth thrust
title_full_unstemmed	Impact of wall movements on the location of passive Earth thrust
title_sort	impact of wall movements on the location of passive earth thrust
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/dfa77d3b0ec64fe4bb2a2746839321ab
work_keys_str_mv	AT boualimeriemf impactofwallmovementsonthelocationofpassiveearththrust AT karkushmahdio impactofwallmovementsonthelocationofpassiveearththrust AT bouassidamounir impactofwallmovementsonthelocationofpassiveearththrust
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Impact of wall movements on the location of passive Earth thrust

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