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dc.contributor.authorRamon Tarragona, Anna
dc.contributor.authorAlonso Pérez de Agreda, Eduardo
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
dc.identifier.citationRamon, A.; Alonso, E. Crystal growth under bridge foundation. A: International Workshop of Young Doctor in Geomechanics. "W(H)YDOC 12 : 4th International Workshop of Young Doctors in Geomechanics". Paris: 2012, p. 61-69.
dc.descriptionW(H)YDOC PhD Prize 2012, durant el 4th International Workshop of Young Doctors in Geomechanics W(H)YDOC 2012.
dc.description.abstractA high-speed railway viaduct experienced a sustained heave at high rates after its construction. The pillars of the bridge are founded on an Eocene hard anhydritic-gypsiferous claystone by means of massive foundations. Field investigations identified an active layer below the piles’ tips where expansions occur as a result of gypsum crystal growth in discontinuities from supersaturated aqueous solutions. The construction of the bridge is supposed to have triggered the swelling mechanism. An embankment, partially filling the valley, was built to slow the heave rate. The presence of soluble gypsum and anhydrite and inert materials is considered in the model developed to reproduce the observed expansive mechanism. The formulation describes the kinetics of dissolution and precipitation of minerals and the induced swelling strains by crystal growth. The calculated heave is compared with the field long-term vertical displacements measured before and after the construction of the embankment. A sensitivity study is also reported.
dc.format.extent9 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
dc.subject.lcshBridges -- Foundations and piers -- Corrosion
dc.titleCrystal growth under bridge foundation
dc.typeConference report
dc.subject.lemacEnginyeria geològica -- Ponts
dc.subject.lemacPonts -- Conservació
dc.contributor.groupUniversitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorRamon, A.; Alonso, E.
upcommons.citation.contributorInternational Workshop of Young Doctor in Geomechanics
upcommons.citation.publicationNameW(H)YDOC 12 : 4th International Workshop of Young Doctors in Geomechanics

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