Evaluation of Concrete Bored Piles Behaviour in Saturated Loose and Dense Sand During the Static Load Testing

Aghayarzadeh, M; Khabbaz, H; Fatahi, B

Evaluation of Concrete Bored Piles Behaviour in Saturated Loose and Dense Sand During the Static Load Testing

Aghayarzadeh, M

Khabbaz, H

Fatahi, B

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Publisher:: Springer
Publication Type:: Chapter
Citation:: New Developments in Materials for Infrastructure Sustainability and the Contemporary Issues in Geo-environmental Engineering, 2019, pp. 75 - 89
Issue Date:: 2019

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Field	Value	Language
dc.contributor.author	Aghayarzadeh, M https://orcid.org/0000-0003-2462-9367	en_US
dc.contributor.author	Khabbaz, H https://orcid.org/0000-0001-6637-4601	en_US
dc.contributor.author	Fatahi, B https://orcid.org/0000-0002-7920-6946	en_US
dc.date.issued	2019	en_US
dc.identifier.citation	New Developments in Materials for Infrastructure Sustainability and the Contemporary Issues in Geo-environmental Engineering, 2019, pp. 75 - 89	en_US
dc.identifier.isbn	978-3-319-95773-9	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126824
dc.description.abstract	Diversity of construction methods is available for the installation of piles; and generally piles are classified into two main groups in terms of their installation method, including non-displacement piles and displacement piles. However, non-displacement piles such as bored piles or drilled shafts cause less disruption to adjacent soil compared to displacement piles. Knowing the behaviour of piles, the load-displacement curve has an important role during the pile load testing. In this study, firstly, the background and concepts of three different constitutive soil models including Mohr-Coulomb, Hardening Soil and Hypoplastic models are discussed. Secondly, using these soil models and finite element software PLAXIS, the load carrying capacity of a single bored pile in saturated dense and loose sand are evaluated. Finally, different factors affecting load-displacement curve including Hypoplastic model parameters are assessed. The most important aim of this study is comparing the capability of different soil models to capture the large strain behaviour observed during the static load testing. The results revealed that all three soil models indicate a reasonable correlation to each other, except when the “Intergranular Strain” concept, defined in Hypoplastic model, is activated. This paper can be useful for the practicing engineers to identify the effect of different soil models in numerical simulation of static pile load testing.	en_US
dc.publisher	Springer	en_US
dc.relation.ispartof	New Developments in Materials for Infrastructure Sustainability and the Contemporary Issues in Geo-environmental Engineering	en_US
dc.relation.isbasedon	10.1007/978-3-319-95774-6_7	en_US
dc.title	Evaluation of Concrete Bored Piles Behaviour in Saturated Loose and Dense Sand During the Static Load Testing	en_US
dc.type	Chapter
utslib.location	Cham, Switzerland	en_US
utslib.for	0905 Civil Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/DVC (Teaching and Learning)
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.consider-herdc	true	en_US
pubs.place-of-publication	Cham, Switzerland	en_US
pubs.publication-status	Published	en_US

Abstract:

Diversity of construction methods is available for the installation of piles; and generally piles are classified into two main groups in terms of their installation method, including non-displacement piles and displacement piles. However, non-displacement piles such as bored piles or drilled shafts cause less disruption to adjacent soil compared to displacement piles. Knowing the behaviour of piles, the load-displacement curve has an important role during the pile load testing. In this study, firstly, the background and concepts of three different constitutive soil models including Mohr-Coulomb, Hardening Soil and Hypoplastic models are discussed. Secondly, using these soil models and finite element software PLAXIS, the load carrying capacity of a single bored pile in saturated dense and loose sand are evaluated. Finally, different factors affecting load-displacement curve including Hypoplastic model parameters are assessed. The most important aim of this study is comparing the capability of different soil models to capture the large strain behaviour observed during the static load testing. The results revealed that all three soil models indicate a reasonable correlation to each other, except when the “Intergranular Strain” concept, defined in Hypoplastic model, is activated. This paper can be useful for the practicing engineers to identify the effect of different soil models in numerical simulation of static pile load testing.

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http://hdl.handle.net/10453/126824