Challenges In Assessing The Installation Effects Of Controlled Modulus Columns On Behaviour Of Surrounding Soils

Nguyen, HH; Fatahi, B; Khabbaz, H

Challenges In Assessing The Installation Effects Of Controlled Modulus Columns On Behaviour Of Surrounding Soils

Nguyen, HH Fatahi, B Khabbaz, H

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Publisher:: The GEOMATE International Society
Publication Type:: Conference Proceeding
Citation:: Proceedings Of Fourth International Conference – Geomate 2014 Geotechnique, Construction Materials And Environment, 2014, 4 (1), pp. 44 - 49 (6)
Issue Date:: 2014-11-19

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Field	Value	Language
dc.contributor.author	Nguyen, HH	en_US
dc.contributor.author	Fatahi, B	en_US
dc.contributor.author	Khabbaz, H https://orcid.org/0000-0001-6637-4601	en_US
dc.contributor.editor	Shiau, J	en_US
dc.contributor.editor	Hossain, Z	en_US
dc.date	2014-11-19	en_US
dc.date.issued	2014-11-19	en_US
dc.identifier.citation	Proceedings Of Fourth International Conference – Geomate 2014 Geotechnique, Construction Materials And Environment, 2014, 4 (1), pp. 44 - 49 (6)	en_US
dc.identifier.isbn	978-4-9905958-3-8	en_US
dc.identifier.uri	http://hdl.handle.net/10453/32948
dc.description.abstract	Ground improvement technique using controlled modulus columns (CMC) has become increasingly popular in recent years. A rotary displacement auger is screwed and pushed into the ground during installation, to create a vertical cylindrical cavity before concrete is injected to form a CMC. This process causes disturbance of the surrounding soils and results in lateral displacement. In certain circumstances, such displacement may cause damage to freshly grouted neighbouring columns or nearby structures. This paper integrates the existing methods in assessing the lateral displacement of the surrounding soils due to CMC installation. Analytical, numerical and physical modelling techniques are discussed. The study aims to provide recommendations on novel techniques as well as important parameters for simulating CMC installation process and assessing the effect of this process on nearby freshly grouted CMCs and bridge piles.	en_US
dc.publisher	The GEOMATE International Society	en_US
dc.relation.ispartof	Proceedings Of Fourth International Conference – Geomate 2014 Geotechnique, Construction Materials And Environment	en_US
dc.relation.ispartof	International Conference on Geotechnique, Construction Materials and Environment	en_US
dc.title	Challenges In Assessing The Installation Effects Of Controlled Modulus Columns On Behaviour Of Surrounding Soils	en_US
dc.type	Conference Proceeding
utslib.citation.volume	1	en_US
utslib.citation.volume	4	en_US
utslib.location	Tsu city, Mie, Japan	en_US
utslib.location.activity	Brisbane, Australia	en_US
utslib.for	090501 Civil Geotechnical Engineering	en_US
dc.location.activity	Brisbane, Australia
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
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/Provost
pubs.organisational-group	/University of Technology Sydney/Provost/Jumbunna
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.finish-date	2014-11-21	en_US
pubs.issue	1	en_US
pubs.place-of-publication	Tsu city, Mie, Japan	en_US
pubs.publication-status	Published	en_US
pubs.start-date	2014-11-19	en_US
pubs.volume	4	en_US

Abstract:

Ground improvement technique using controlled modulus columns (CMC) has become increasingly popular in recent years. A rotary displacement auger is screwed and pushed into the ground during installation, to create a vertical cylindrical cavity before concrete is injected to form a CMC. This process causes disturbance of the surrounding soils and results in lateral displacement. In certain circumstances, such displacement may cause damage to freshly grouted neighbouring columns or nearby structures. This paper integrates the existing methods in assessing the lateral displacement of the surrounding soils due to CMC installation. Analytical, numerical and physical modelling techniques are discussed. The study aims to provide recommendations on novel techniques as well as important parameters for simulating CMC installation process and assessing the effect of this process on nearby freshly grouted CMCs and bridge piles.

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http://hdl.handle.net/10453/32948