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Long-term response and design of two geosynthetics: effect of field installation damage

2018Journal article Restricted access
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dc.contributor.authorPinho-Lopes, Margarida
dc.contributor.authorPaula, António Miguel
dc.contributor.authorLopes, Maria de Lurdes
dc.date.accessioned2018-05-03T10:05:54Z
dc.date.available2018-05-03T10:05:54Z
dc.date.issued2018
dc.description.abstractThis paper contributes to understanding how installation damage of geosynthetics influences their long-term response and design. A geotextile and a geogrid were exhumed after installation under real conditions; their long-term tensile behaviour was investigated using conventional creep and creep rupture tests. Reduction factors for installation damage, creep and their combined effect were computed. The main aim of the paper was to assess how the long-term response of the geosynthetics was influenced by installation damage and whether it would be necessary to update current design approaches. The installation damage affected the mechanical response of both geosynthetics; important strength reductions were observed, particularly for the most severe installation conditions. The results indicate that, contrary to what has been reported in the literature, the creep rupture response of the geotextile changed after installation damage. When tested under similar creep loads (fraction of the sample tensile strength), both geosynthetics exhibited reduced potential for creep rupture and smaller strains at the end of primary creep. Changes in stiffness were less important than those for strength, for both short- and long-term response. There was synergy between installation damage and creep; the traditional approach to design was unsafe for the geotextile and slightly conservative for the geogrid.pt_PT
dc.description.sponsorshipThe authors would like to thank the financial support of FCT, Research Project PTDC/ECM/099087/2008 and COMPETE, Research Project FCOMP-01-0124- FEDER-009724.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPinho-Lopes, Margarida; Paula, António Miguel; Lopes, Maria de Lurdes (2018). Long-term response and design of two geosynthetics: effect of field installation damage. Geosynthetics International. ISSN 1072-6349. 25:1, p. 98-117pt_PT
dc.identifier.doi10.1680/jgein.17.00036pt_PT
dc.identifier.issn1072-6349
dc.identifier.urihttp://hdl.handle.net/10198/17581
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherICE Virtual Librarypt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectGeosyntheticspt_PT
dc.subjectTensile strengthpt_PT
dc.subjectCreeppt_PT
dc.subjectCreep rupturept_PT
dc.subjectIsochronous curvespt_PT
dc.subjectReduction factorspt_PT
dc.subjectSynergypt_PT
dc.subjectStiffnesspt_PT
dc.subjectInstallation damagept_PT
dc.titleLong-term response and design of two geosynthetics: effect of field installation damagept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FECM%2F099087%2F2008/PT
oaire.citation.endPage117pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage98pt_PT
oaire.citation.titleGeosynthetics Internationalpt_PT
oaire.citation.volume25pt_PT
oaire.fundingStream5876-PPCDTI
person.familyNamePaula
person.givenNameAntónio Miguel
person.identifier.ciencia-idD115-1763-07B0
person.identifier.orcid0000-0003-4788-8644
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0c3fd9de-f48a-4789-b77f-2a96c704621f
relation.isAuthorOfPublication.latestForDiscovery0c3fd9de-f48a-4789-b77f-2a96c704621f
relation.isProjectOfPublicationef341643-8d96-4837-ada8-06043753f552
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