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dc.contributor.authorBraga Farinha, M. L.pt_BR
dc.contributor.authorAzevedo, N.pt_BR
dc.contributor.authorLeitão, N. S.pt_BR
dc.contributor.authorRocha de Almeida, J.pt_BR
dc.contributor.authorOliveira, S.pt_BR
dc.date.accessioned2024-10-01T13:15:10Zpt_BR
dc.date.accessioned2024-10-07T15:30:33Z-
dc.date.available2024-10-01T13:15:10Zpt_BR
dc.date.available2024-10-07T15:30:33Z-
dc.date.issued2022-01pt_BR
dc.identifier.citationhttps://doi.org/10.3390/geotechnics2010006pt_BR
dc.identifier.urihttp://dspace2.lnec.pt:8080/jspui/handle/123456789/1017728pt_BR
dc.identifier.urihttp://repositorio.lnec.pt:8080/jspui/handle/123456789/1017728-
dc.description.abstractEvaluation of the sliding stability of concrete dams requires the use of numerical tools not only able to simulate the coupled hydromechanical behavior but also able to adequately represent the foundation discontinuities and the specific features of dam foundations. The formulation of a three-dimensional (3D) small displacement finite element model based on interface elements to simulate the discontinuities is presented. In this model, the hydraulic behavior is simulated assuming that the water flow occurs only along channels located at the edges of the triangular interface elements that simulate the discontinuities. The model is used to perform coupled hydromechanical analysis of a large arch-gravity dam and to assess safety against dam base sliding, assuming different constitutive models at the dam/foundation interface and two different approaches: (i) strength reduction method and (ii) amplification of the hydrostatic pressure, assuming an increase in the reservoir level. The present study shows that consistent results are obtained with the proposed numerical model and that stability analysis should preferably be carried out using the method of increasing the hydrostatic pressure and the corresponding uplift pressures, as this methodology leads to significantly lower safety factors.pt_BR
dc.language.isoengpt_BR
dc.publisherMDPIpt_BR
dc.rightsopenAccesspt_BR
dc.subjectconcrete dam foundationspt_BR
dc.subjectrock foundationspt_BR
dc.subjecthydromechanical behaviorpt_BR
dc.subjectthree-dimnsional numerical modellingpt_BR
dc.subjectsofteningpt_BR
dc.subjectsliding stabilitypt_BR
dc.titleSliding stability assessment of concrete dams using 3D discontinuum hydromechanical model following a discrete crack approachpt_BR
dc.typearticlept_BR
dc.description.pages25p.pt_BR
dc.description.volume2(1)pt_BR
dc.description.sectorDBB/NOpt_BR
dc.description.magazineGeotechnicspt_BR
dc.contributor.peer-reviewedSIMpt_BR
dc.contributor.academicresearchersSIMpt_BR
dc.contributor.arquivoSIMpt_BR
Appears in Collections:DBB/NO - Comunicações a congressos e artigos de revista

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