This paper aims to investigate the hydro-mechanical behaviour of a loosely compacted embankment during an inundation event. This study is based on the results of a centrifuge test carried out on a small-scale embankment model made of an artificially compacted clay-sand mixture. The wetting-induced displacements are analyzed and interpreted by means of a constitutive model adapted to unsaturated conditions. The numerical predictions are presented in terms of time evolutions of settlements, as well as, spatial distributions of vertical displacements. These profiles are compared to those experimentally observed in order to validate the predictive capabilities of the model on a boundary value problem. Moreover, the stress paths followed by elementary soil elements located at different depths are analyzed to emphasize the stress and strain variations due to capillary rise.

Rotisciani, G.M., Casini, F., Desideri, A., & Sciarra, G. (2016). Modelling of imbibition process in an embankment scale model. In E3S Web of Conferences (pp.16009). EDP Sciences [10.1051/e3sconf/20160916009].

Modelling of imbibition process in an embankment scale model

CASINI, FRANCESCA;
2016

Abstract

This paper aims to investigate the hydro-mechanical behaviour of a loosely compacted embankment during an inundation event. This study is based on the results of a centrifuge test carried out on a small-scale embankment model made of an artificially compacted clay-sand mixture. The wetting-induced displacements are analyzed and interpreted by means of a constitutive model adapted to unsaturated conditions. The numerical predictions are presented in terms of time evolutions of settlements, as well as, spatial distributions of vertical displacements. These profiles are compared to those experimentally observed in order to validate the predictive capabilities of the model on a boundary value problem. Moreover, the stress paths followed by elementary soil elements located at different depths are analyzed to emphasize the stress and strain variations due to capillary rise.
3rd European Conference on Unsaturated Soils, E-UNSAT 2016
Ecole des Ponts, Marne la Vallee, fra
2016
Rilevanza internazionale
contributo
Settore ICAR/07 - Geotecnica
English
Earth and Planetary Sciences (all); 2300; Energy (all)
www.e3s-conferences.org/
Intervento a convegno
Rotisciani, G.M., Casini, F., Desideri, A., & Sciarra, G. (2016). Modelling of imbibition process in an embankment scale model. In E3S Web of Conferences (pp.16009). EDP Sciences [10.1051/e3sconf/20160916009].
Rotisciani, G; Casini, F; Desideri, A; Sciarra, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/186815
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