Experimental Evaluation of Encased Stone Column Technique for Liquefaction Mitigation

Punetha, P; Ganesh Kumar, S

Experimental Evaluation of Encased Stone Column Technique for Liquefaction Mitigation

Punetha, P

Ganesh Kumar, S

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Publisher:: Springer
Publication Type:: Conference Proceeding
Citation:: Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering, 2018, pp. 176-184
Issue Date:: 2018-05-06

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Field	Value	Language
dc.contributor.author	Punetha, P https://orcid.org/0000-0002-0812-4708
dc.contributor.author	Ganesh Kumar, S
dc.contributor.editor	Qiu, T
dc.contributor.editor	Tiwari, B
dc.contributor.editor	Zhang, Z
dc.date	2018-05-27
dc.date.accessioned	2022-12-25T20:08:14Z
dc.date.available	2022-12-25T20:08:14Z
dc.date.issued	2018-05-06
dc.identifier.citation	Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering, 2018, pp. 176-184
dc.identifier.isbn	9811301301
dc.identifier.isbn	9789811301308
dc.identifier.uri	http://hdl.handle.net/10453/164557
dc.description.abstract	The present paper investigates the effectiveness of using geotextile encased stone column for mitigating the liquefaction phenomenon in saturated sandy deposits. Reduced scale 1-g model tests were conducted using a uniaxial shake table to study the behavior of loose saturated sand reinforced with encased stone columns when subjected to harmonic (sinusoidal) loading. Additionally, the response of saturated sand reinforced with stone column, with and without geotextile encasement is also studied and compared. The test results show that the installation of stone column in the saturated loose sand increases the liquefaction resistance of sand. The presence of geotextile allows quicker dissipation of pore water which results in an improved liquefaction resistance of sand. Moreover, the acceleration amplitude influences the response of both the unreinforced and reinforced sand. The increase in acceleration amplitude increases the magnitude of excess pore water pressure ratio. Furthermore, the presence of stone column also reduces the settlement of the shallow foundation.
dc.language	en
dc.publisher	Springer
dc.relation.ispartof	Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering
dc.relation.ispartof	GeoShanghai International Conference
dc.relation.isbasedon	10.1007/978-981-13-0131-5_20
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Experimental Evaluation of Encased Stone Column Technique for Liquefaction Mitigation
dc.type	Conference Proceeding
utslib.location.activity	Shanghai, China
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-12-25T20:08:13Z
pubs.finish-date	2018-05-30
pubs.publication-status	Published online
pubs.start-date	2018-05-27

Abstract:

The present paper investigates the effectiveness of using geotextile encased stone column for mitigating the liquefaction phenomenon in saturated sandy deposits. Reduced scale 1-g model tests were conducted using a uniaxial shake table to study the behavior of loose saturated sand reinforced with encased stone columns when subjected to harmonic (sinusoidal) loading. Additionally, the response of saturated sand reinforced with stone column, with and without geotextile encasement is also studied and compared. The test results show that the installation of stone column in the saturated loose sand increases the liquefaction resistance of sand. The presence of geotextile allows quicker dissipation of pore water which results in an improved liquefaction resistance of sand. Moreover, the acceleration amplitude influences the response of both the unreinforced and reinforced sand. The increase in acceleration amplitude increases the magnitude of excess pore water pressure ratio. Furthermore, the presence of stone column also reduces the settlement of the shallow foundation.

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http://hdl.handle.net/10453/164557