Improvement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers

To control the problems of high stresses and applied moments in the piled raft foundations disconnected piled were used and the piles considered as reinforcement to the soil rather than as structural members, the gap (separation layer) between the piles and the raft can be filled with stabilized gra...

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Autores principales:	Khalil Ayat I., Mahmood Mahmood R., Baker Husam H.
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	piled raft disconnected piled raft separation layer geogrid, geocell Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/68b03349d77049adaa182dbbfc0ebe52
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spelling	oai:doaj.org-article:68b03349d77049adaa182dbbfc0ebe522021-11-12T11:43:50ZImprovement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers2267-124210.1051/e3sconf/202131801017https://doaj.org/article/68b03349d77049adaa182dbbfc0ebe522021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/94/e3sconf_icge2021_01017.pdfhttps://doaj.org/toc/2267-1242To control the problems of high stresses and applied moments in the piled raft foundations disconnected piled were used and the piles considered as reinforcement to the soil rather than as structural members, the gap (separation layer) between the piles and the raft can be filled with stabilized granular material which distributes the stresses below the raft and decreases the concentration stresses at the pile heads. Fifteen model tests were performed using three precast concrete pile models embedded within soft clayey soil of undrained shear strength 30kPa. Flexi-Force sensors were used fixed on piles head and the surrounding soil to measure the sharing load transmitted to piles and the surrounding soil. Geogrid and geocell materials were used in different depths and in multilayers to reinforce the separation layer and increase its stiffness. The results show that when reinforcing the separation layer with geogrid at different depths, an increase in depth over the top of the piles reduced the bearing pressure. When used, geocell reinforcement significantly increases in load carrying capacity, and a significant reduction in footing settlement occurs.Khalil Ayat I.Mahmood Mahmood R.Baker Husam H.EDP Sciencesarticlepiled raftdisconnected piled raftseparation layergeogrid, geocellEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 318, p 01017 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	piled raft disconnected piled raft separation layer geogrid, geocell Environmental sciences GE1-350
spellingShingle	piled raft disconnected piled raft separation layer geogrid, geocell Environmental sciences GE1-350 Khalil Ayat I. Mahmood Mahmood R. Baker Husam H. Improvement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers
description	To control the problems of high stresses and applied moments in the piled raft foundations disconnected piled were used and the piles considered as reinforcement to the soil rather than as structural members, the gap (separation layer) between the piles and the raft can be filled with stabilized granular material which distributes the stresses below the raft and decreases the concentration stresses at the pile heads. Fifteen model tests were performed using three precast concrete pile models embedded within soft clayey soil of undrained shear strength 30kPa. Flexi-Force sensors were used fixed on piles head and the surrounding soil to measure the sharing load transmitted to piles and the surrounding soil. Geogrid and geocell materials were used in different depths and in multilayers to reinforce the separation layer and increase its stiffness. The results show that when reinforcing the separation layer with geogrid at different depths, an increase in depth over the top of the piles reduced the bearing pressure. When used, geocell reinforcement significantly increases in load carrying capacity, and a significant reduction in footing settlement occurs.
format	article
author	Khalil Ayat I. Mahmood Mahmood R. Baker Husam H.
author_facet	Khalil Ayat I. Mahmood Mahmood R. Baker Husam H.
author_sort	Khalil Ayat I.
title	Improvement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers
title_short	Improvement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers
title_full	Improvement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers
title_fullStr	Improvement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers
title_full_unstemmed	Improvement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers
title_sort	improvement separation layer of disconnected piled raft foundations using geogrid and geocell layers
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/68b03349d77049adaa182dbbfc0ebe52
work_keys_str_mv	AT khalilayati improvementseparationlayerofdisconnectedpiledraftfoundationsusinggeogridandgeocelllayers AT mahmoodmahmoodr improvementseparationlayerofdisconnectedpiledraftfoundationsusinggeogridandgeocelllayers AT bakerhusamh improvementseparationlayerofdisconnectedpiledraftfoundationsusinggeogridandgeocelllayers
_version_	1718430623324962816

Improvement Separation Layer of Disconnected Piled Raft Foundations using Geogrid and Geocell Layers

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