Chapter
Mar 28, 2013
Wetting Effect on CBR Properties of Compacted Fine-Grained Residual Soils
Publication: Foundation Engineering in the Face of Uncertainty: Honoring Fred H. Kulhawy
Abstract
Fine-grained residual soils are widely used as compacted fill materials, although they are well known to be vulnerable to weakening when wetted, leading to fill slope failures. A practical approach to evaluate this wetting effect based on typically available properties is being developed. Extensive evaluations of laboratory-compacted soils and variability of field-compacted soils, followed by the development of a simple deformation-based stability model, are reported. The wetting effect is represented by the CBR soaked to unsoaked ratio, and the soil activity can be used as a predictor of this ratio. Compaction effort has a significant effect on this ratio. Effects of variability of compacted soils and uncertainty of prediction equation are incorporated into the stability model to evaluate the wetting effect on slope probability of failure.
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© 2013 American Society of Civil Engineers.
History
Published online: Mar 28, 2013
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ASCE Technical Topics:
- Compacted soils
- Compaction (material)
- Fine-grained soils
- Geomechanics
- Geotechnical engineering
- Geotechnical investigation
- Material mechanics
- Material properties
- Materials characterization
- Materials engineering
- Penetration tests
- Residual soils
- Soil dynamics
- Soil mechanics
- Soil properties
- Soil stabilization
- Soils (by type)
Authors
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Civil Engineering Department, Universitas Indonesia, Kampus UI, Depok 16424, Indonesia. E-mail: [email protected]
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