Determination of active failure surface geometry for cohesionless backfills

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dc.contributor.authorAltunbas, Adlen
dc.contributor.authorSoltanbeigi, Behzad
dc.contributor.authorCinicioglu, Ozer
dc.date.accessioned2024-03-13T10:33:02Z
dc.date.available2024-03-13T10:33:02Z
dc.date.issued2017
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractThe extent by which economy and safety concerns can be addressed in earth retaining structure design depends on the accuracy of the assumed failure surface. Accordingly, this study attempts to investigate and quantify mechanical backfill properties that control failure surface geometry of cohesionless backfills at the active state for translational mode of wall movements. For this purpose, a small scale 1 g physical model study was conducted. The experimental setup simulated the conditions of a backfill behind a laterally translating vertical retaining wall in plane strain conditions. To monitor the influence of dilative behavior on failure surface geometry, model tests were conducted on backfills with different densities corresponding to different dilation angles. Failure surface geometries were identified using particle image velocimetry (PIV) method. Friction and dilation angles of the backfill are calculated as functions of failure stress state and relative density of the backfill using a well-known empirical equation, making it possible to quantify the influence of dilation angle on failure surface geometry. As a result, an empirical equation is proposed to predict active failure surface geometry for cohesionless backfills based on peak dilatancy angle. It is shown that the failure surface geometries calculated using the proposed equation are in good agreement with the identified failure surfaces.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [110M595]en_US
dc.description.sponsorshipAuthors would like to thank the Scientific and Technological Research Council of Turkey (TUBITAK Project 110M595) for providing financial support.en_US
dc.identifier.doi10.12989/gae.2017.12.6.983
dc.identifier.endpage1001en_US
dc.identifier.issn2005-307X
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-85020538728en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage983en_US
dc.identifier.urihttps://doi.org/10.12989/gae.2017.12.6.983
dc.identifier.urihttps://hdl.handle.net/20.500.12662/3741
dc.identifier.volume12en_US
dc.identifier.wosWOS:000405121600008en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTechno-Pressen_US
dc.relation.ispartofGeomechanics And Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectactive stateen_US
dc.subjectparticle image velocimetry (PIV)en_US
dc.subjectdilatancyen_US
dc.subjectretaining wallen_US
dc.subjectphysical modellingen_US
dc.titleDetermination of active failure surface geometry for cohesionless backfillsen_US
dc.typeArticleen_US

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