Cyclic Shear Response of Undisturbed and Reconstituted Low-Plastic Fraser River Silt
Publication: Geotechnical Earthquake Engineering and Soil Dynamics IV
Abstract
The cyclic shear response of natural low-plastic Fraser River silt was investigated using constant volume direct simple shear tests, employing specimens prepared from undisturbed field samples and by reconstitution of the same silt material. The specimens of undisturbed silt, despite having a looser density under identical consolidation stress conditions, exhibited extensively more dilative response and larger shear resistance in comparison to those displayed by counterpart reconstituted specimens. In addition to consolidation stress conditions and resulting void ratios, it appears that other naturally inherited parameters such as soil fabric and aging effects would critically influence the shear response of natural silt. Since the shear response observed from reconstituted specimens seem to result in conservative design parameters, it would be prudent to use specimens from undisturbed samples to assess the expected field behavior of natural silt.
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Published In
Geotechnical Earthquake Engineering and Soil Dynamics IV
Pages: 1 - 10
Copyright
© 2008 American Society of Civil Engineers.
History
Published online: Jun 20, 2012
ASCE Technical Topics:
- Consolidated soils
- Continuum mechanics
- Deformation (mechanics)
- Engineering fundamentals
- Engineering mechanics
- Fluid mechanics
- Geomechanics
- Geotechnical engineering
- Hydrologic engineering
- Laboratory tests
- Plasticity
- River engineering
- Rivers and streams
- Shear resistance
- Shear tests
- Silt
- Soil liquefaction
- Soil mechanics
- Soil properties
- Soils (by type)
- Solid mechanics
- Structural mechanics
- Tests (by type)
- Viscosity
- Water and water resources
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