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Hydro‐mechanical response of collapsible soils under different infiltration events
Author(s) -
Rotisciani G. M.,
Sciarra G.,
Casini F.,
Desideri A.
Publication year - 2015
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.2359
Subject(s) - ponding , infiltration (hvac) , geotechnical engineering , soil water , wetting , imbibition , effective stress , geology , materials science , soil science , composite material , botany , ecology , germination , drainage , biology
Summary 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. Copyright © 2015 John Wiley & Sons, Ltd.