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dc.contributor.authorArroyo Alvarez de Toledo, Marcos
dc.contributor.authorCiantia, M.
dc.contributor.authorCastellanza, Riccardo
dc.contributor.authorGens Solé, Antonio
dc.contributor.authorNOVA, ROBERTO
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
dc.date.accessioned2013-07-03T11:23:35Z
dc.date.created2012-09
dc.date.issued2012-09
dc.identifier.citationArroyo, M. [et al.]. Simulation of cement-improved clay structures with a bonded elasto-plastic model: A practical approach. "Computers and geotechnics", Setembre 2012, vol. 45, p. 140-150.
dc.identifier.issn0266-352X
dc.identifier.urihttp://hdl.handle.net/2117/19781
dc.description.abstractEngineering practice has usually dealt with the treated soil bodies using simplistic constitutive models (e.g. elastic perfectly-plastic Mohr–Coulomb). In this paper, a more refined bonded elasto-plastic model is here applied, with emphasis on the ease of calibration. Empirical studies have identified the ratio of cement content to the cured mixture void ratio as a controlling variable for mechanical response. This observation is elaborated upon to show that measuring porosity and unconfined compressive strength is enough to initialize the state variables of a bonded elasto-plastic model. Data from cement-improved Bangkok clay is employed to illustrate and validate the calibration procedure proposed. The structure-scale consequences of the constitutive model choice for the soil–cement are explored through the parametric analysis of an idealized excavation problem. A treated soil–cement slab is characterized by increasing cement contents in the clay–cement mixture. Two sets of parametric analysis are run characterizing the clay–cement either with a linear elastic-perfectly plastic model or with the bonded elasto-plastic model. The same values of unconfined compressions strength (UCS) are specified for the two models to make comparisons meaningful. Results from both series of analysis are compared highlighting the differences in predicted behaviour of the retaining wall and the excavation stability.
dc.format.extent11 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia
dc.subjectÀrees temàtiques de la UPC::Informàtica::Aplicacions de la informàtica::Aplicacions informàtiques a la física i l‘enginyeria
dc.subject.lcshClay soils -- Stability
dc.subject.otherSoil improvement
dc.subject.otherNumerical modelling
dc.subject.otherConstitutive relation
dc.subject.otherClay
dc.subject.otherCement
dc.subject.otherCemented soils
dc.subject.otherConstitutive models
dc.subject.otherCalibration
dc.subject.otherInitialization
dc.subject.otherExcavation
dc.titleSimulation of cement-improved clay structures with a bonded elasto-plastic model: A practical approach
dc.typeArticle
dc.subject.lemacSòls argilosos -- Estabilitat
dc.contributor.groupUniversitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.identifier.doi10.1016/j.compgeo.2012.05.008
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
drac.iddocument10979708
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
upcommons.citation.authorArroyo, M.; Ciantia, M.; Castellanza, R.; Gens, A.; NOVA, R.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameComputers and geotechnics
upcommons.citation.volume45
upcommons.citation.startingPage140
upcommons.citation.endingPage150


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