Drying response and effective stress in a double porosity aggregated soil

Autor:	Ali Reza Bagherieh, Arsalan Ghahramani, Ghassem Habibagahi, Nasser Khalili
Rok vydání:	2009
Předmět:	Materials science Suction Soil test Effective stress Geology Geotechnical Engineering and Engineering Geology Water retention Soil water medicine Geotechnical engineering Composite material medicine.symptom Porous medium Porosity Shrinkage
Zdroj:	Engineering Geology. 105:44-50
ISSN:	0013-7952
DOI:	10.1016/j.enggeo.2008.12.009
Popis:	Shrinkage and water retention characteristics of a double porosity compacted soil are studied. Results from a series of suction controlled oedometric drying tests at different net stresses are presented. Water retention curves exhibit a bimodal response which is a characteristic of the double porosity structure of the soil. Validity of the expression proposed by Khalili et al. [Khalili, N., Witt, R., Laloui, L., Vulliet, L., Koliji, A., 2005. Effective stress in double porous media with two immiscible fluids. Geophys. Res. Lett. 32 (15): Art. No. 15309.] for the determination of the effective stress in double porosity media is investigated. It is shown that quantitative predictions of volume change in unsaturated aggregated soils can be made using the effective stress concept.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3777c27dc411749947c62bda47fe181c https://doi.org/10.1016/j.enggeo.2008.12.009 Zobrazit plný text záznamu Full Text from ScienceDirect