000022376 001__ 22376
000022376 005__ 20170622150010.0
000022376 04107 $$aeng
000022376 046__ $$k2015-05-25
000022376 100__ $$aRapti, Ioanna
000022376 24500 $$aSEISMIC EVALUATION OF EMBANKMENT-TYPE STRUCTURES WITH COUPLED HYDRO-MECHANICAL MODEL

000022376 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022376 260__ $$bNational Technical University of Athens, 2015
000022376 506__ $$arestricted
000022376 520__ $$2eng$$aThe response of geotechnical structures under earthquake loading is highly nonlinear and often leads to problems of slope stability, foundation settlement and soil liquefaction. The prediction of these failure modes is a topic of great interest in geotechnical earthquake engineering, particularly for structural integrity assessment, which requires estimation of structural behavior during and after collapse. In this study, the earthquake response of a road embankment resting on a soil foundation is investigated. Both fully drained and coupled effective stress analysis are performed. Moreover, two different soil types are used for the embankment (looseto-medium and medium-to-dense sand). In the fully drained case, no failure of the embankment is observed for the medium-to-dense sand and for a certain level of ground motion. However, in the coupled effective stress simulation, for the same material and input motion, liquefaction of the foundation soil can lead to the generation of a thick shear band which produce large settlements and accelerate the failure of the embankment. The response of the loose-to-medium sand is fundamentally different, as several localization zones are generated, at the foundation part and inside the embankment body, as well. In both simulations - fully drained and coupled effective stress analyis - the embankment fail can occur due to shear band generation inside the embankment.

000022376 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022376 653__ $$aEmbankment, Dynamic analysis, Coupled hydro-mechanical model, Liquefaction.

000022376 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022376 720__ $$aRapti, Ioanna$$iVoldoire, Francois$$iFoucault, Alexandre$$iModaressi-Farahmand-Razavi, Arezou$$iLopez-Caballero, Fernando
000022376 8560_ $$ffischerc@itam.cas.cz
000022376 8564_ $$s780793$$uhttps://invenio.itam.cas.cz/record/22376/files/C634.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022376 962__ $$r22030
000022376 980__ $$aPAPER