Authors
Enrique Romero, Cristina Jommi
Publication date
2008/5
Journal
Water Resources Research
Volume
44
Issue
5
Description
Volume changes of natural and compacted soils induced by changes in their water content have many practical implications in the service life of earth dams, river and canal embankments, and waste disposal facilities. An insight into the overall strain response of a clayey soil upon gradual wetting and drying is provided here. Experimental data coming from oedometer and isotropic tests under suction and net stress control are presented for a compacted clay with an initial anisotropic fabric, highlighting the relevant role played by the hydraulic path on collapse, swelling, and shrinkage strains. Irreversible strains could be observed after wetting‐drying paths and the subsequent drying‐wetting cycle. Both stress and hydraulic histories play a role in the evolution of the directional fabric of clayey soils. The experimental data could be reproduced with a rather simple elastic‐plastic constitutive model with a mixed isotropic …
Total citations
Scholar articles
E Romero, C Jommi - Water Resources Research, 2008