Measurement of the coefficient of permeability for a deformable unsaturated soil using a triaxial permeameter

The development of a specially designed triaxial permeameter for the measurement of the coefficient of permeability of deformable unsaturated soils is presented in this paper. The triaxial permeameter makes it possible to directly measure the coefficient of permeability at various combinations of ne...

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Veröffentlicht in:	Canadian geotechnical journal 1998-06, Vol.35 (3), p.426-432
Hauptverfasser:	Huang, Shangyan, Fredlund, D G, Barbour, S L
Format:	Artikel
Sprache:	eng
Schlagworte:	Coefficients Deformation Earth sciences Earth, ocean, space Electrolytic cells Engineering and environment geology. Geothermics Engineering geology Exact sciences and technology Formability Geotechnics Meters Permeability Permeability coefficient Permeameters Soils Testing Vacuum
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Zusammenfassung:	The development of a specially designed triaxial permeameter for the measurement of the coefficient of permeability of deformable unsaturated soils is presented in this paper. The triaxial permeameter makes it possible to directly measure the coefficient of permeability at various combinations of net normal stresses and matric suction values. The volume change of the soil specimen during the permeability measurement can also be monitored. The performance of the permeameter is demonstrated for a group of tests conducted on slurried specimens of a silty sand.Key words: unsaturated soil, coefficient of permeability, triaxial permeameter, volume change.
ISSN:	0008-3674 1208-6010
DOI:	10.1139/t98-011