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dc.contributor.authorLong, PV
dc.contributor.authorNguyen, LV
dc.contributor.authorBergado, DT
dc.contributor.authorBalasubramaniam, AS
dc.date.accessioned2018-09-12T02:59:45Z
dc.date.available2018-09-12T02:59:45Z
dc.date.issued2015
dc.identifier.issn0266-1144
dc.identifier.doi10.1016/j.geotexmem.2015.05.007
dc.identifier.urihttp://hdl.handle.net/10072/141326
dc.description.abstractIn order to investigate the performance behavior of soft ground improvement using different vacuum consolidation methods (VCM) and different PVD thicknesses, four trial sections namely C1, C2, D1, and D2 were constructed. VCM without airtight membrane using cap drains and direct tubing system (VCM-DT) were used for the first two sections with PVD thickness of 3 mm and 7 mm for C1 and C2, respectively. VCM with airtight membrane and band drains (VCM-MB) were applied for the last two sections for D1 and D2with PVD thickness of 3 mm and 7 mm, respectively. The soil conditions, construction procedures, instrumentation program, and monitored results of the above trial sections are presented in this paper. The results confirmed that the effective vacuum pressure in PVD mainly depends on vacuum consolidation methods and the assumption of uniform distribution of vacuum pressures along the PVD depth which can be suggested for practical design. For VCM-MB using PVD thickness of 3 mm arranged in triangular pattern of 0.9 m spacing, the degree of consolidation of more than 90% can be achieved in less than 8 months of vacuum pumping. However, for VCM-DT, further investigation is needed for preventing air leakage in vacuum system particularly for the case of thick soft clay deposits with large deformations during the preloading.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom473
dc.relation.ispartofpageto483
dc.relation.ispartofissue6
dc.relation.ispartofjournalGeotextiles and Geomembranes
dc.relation.ispartofvolume43
dc.subject.fieldofresearchEngineering not elsewhere classified
dc.subject.fieldofresearchCivil Engineering
dc.subject.fieldofresearchInterdisciplinary Engineering
dc.subject.fieldofresearchcode099999
dc.subject.fieldofresearchcode0905
dc.subject.fieldofresearchcode0915
dc.titlePerformance of PVD improved soft ground using vacuum consolidation methods with and without airtight membrane
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2015 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorBalasubramaniam, Bala B.


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