The behavior of a partially saturated soil during surface-water infiltration is analyzed by means of an elasto- plastic constitutive model formulated in terms of effective stress and extended to unsaturated conditions. The model is calibrated considering laboratory-scale experimental results under suction-controlled conditions. The wetting process in two collapsing soils, initially loaded at in situ stresses, is simulated by imposing two different boundary conditions: surface ponding and water flow. The stress paths resulting from the imbibition process are analyzed at different points inside the layer.

Hydro-mechanical response of collapsible soils under different infiltration events / Rotisciani, GIADA MARIA; Sciarra, Giulio; Casini, F.; Desideri, Augusto. - In: INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS. - ISSN 1096-9853. - STAMPA. - 11:39(2015), pp. 1212-1234. [10.1002/nag.2359]

Hydro-mechanical response of collapsible soils under different infiltration events

ROTISCIANI, GIADA MARIA;SCIARRA, Giulio;DESIDERI, Augusto
2015

Abstract

The behavior of a partially saturated soil during surface-water infiltration is analyzed by means of an elasto- plastic constitutive model formulated in terms of effective stress and extended to unsaturated conditions. The model is calibrated considering laboratory-scale experimental results under suction-controlled conditions. The wetting process in two collapsing soils, initially loaded at in situ stresses, is simulated by imposing two different boundary conditions: surface ponding and water flow. The stress paths resulting from the imbibition process are analyzed at different points inside the layer.
2015
Water Infiltration, Volumetric Collapse, Stress Paths, Partial Saturation, Constitutive Modeling
01 Pubblicazione su rivista::01a Articolo in rivista
Hydro-mechanical response of collapsible soils under different infiltration events / Rotisciani, GIADA MARIA; Sciarra, Giulio; Casini, F.; Desideri, Augusto. - In: INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS. - ISSN 1096-9853. - STAMPA. - 11:39(2015), pp. 1212-1234. [10.1002/nag.2359]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/556968
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