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- Title
Strain-induced anisotropy in fabric and hydraulic parameters of oil sand in triaxial compression.
- Authors
Wong, Ron C.K.
- Abstract
Dense locked Athabasca oil sand specimens were tested in drained triaxial compression with lubricated ends at confining pressures of 5,750 kPa. Computer tomography and scanning electron microscopy imaging techniques were used to examine the microstructural features (interlocked structure, grain fabric, and re-arrangement inside and outside shear bands) of the intact and sheared specimens. The average hydraulic radii and tortuosity along three principal directions were also measured using thin section imaging and electrical resistivity measurement methods. It was found that changes in fabric and hydraulic parameters of oil sand in triaxial compression arc highly inter-related. Intrinsic and induced anisotropics in permeability were observed.
- Subjects
OIL sands; ANISOTROPY; PROPERTIES of matter; MECHANICS (Physics); CONSTITUTION of matter
- Publication
Canadian Geotechnical Journal, 2003, Vol 40, Issue 3, p489
- ISSN
0008-3674
- Publication type
Article
- DOI
10.1139/t03-005