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Collapse behaviour of a residual soil

Rao, SM and Revanasiddappa, K (2002) Collapse behaviour of a residual soil. In: Geotechnique, 52 (4). pp. 259-268.

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Residually derived red soils occur in Bangalore District of Karnataka State, India. The porous and unsaturated nature of the red soils makes them susceptible to collapse on wetting under load. The present study analyses the collapse behaviour of an unsaturated bonded (undisturbed) red soil from Bangalore referenced to tests on samples in an unbonded (remoulded) state. A filter paper method was used to determine the matric suction of the bonded and unbonded specimens, and mercury intrusion porosimetry (MIP) was used to determine their soil structure. Analysis of the experimental results shows that bonding plays an important role in the collapse behaviour of the unsaturated residual soil. The results of the study also provide insight into the volume change behaviour of unsaturated bonded soils on wetting within and beyond the yield locus.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Thomas Telford.
Keywords: laboratory tests;compressibility;residual soils;suction
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Depositing User: Ms V Mangala
Date Deposited: 22 Jul 2011 08:22
Last Modified: 22 Jul 2011 08:22
URI: http://eprints.iisc.ac.in/id/eprint/39055

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