- Title
- A dimensionless model for soil swelling behaviour
- Creator
- Buzzi, O.; Giacomini, A.; Fityus, S.
- Relation
- 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG). Proceedings of the 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG) (Goa, India 1-6 October 2008) p. 638-644
- Relation
- http://www.civil.iitb.ac.in/~dns/IACMAG08
- Publisher
- International Association for Computer Methods and Advances in Geomechanics (IACMAG)
- Resource Type
- conference paper
- Date
- 2008
- Description
- Swelling behaviour of soils is of particular interest for geotechnical structures and the swelling mechanisms have been widely studied. It has been shown that the swelling capacity of a given soil depends on numerous parameters among which its initial dry density, its initial hydration state expressed in terms of saturation degree, water content or suction, the mechanical boundary conditions during the swelling test and the chemical composition of the solution used to hydrate the sample. A comprehensive investigation on the swelling behaviour of a given soil should then include the study of the influence of all these parameters, leading to heavy experimental programs. This paper proposes to tackle the swelling behaviour by means of dimensionless parameters in the manner of fluid mechanics so that the number of experiments required to characterize the swelling behaviour could be significantly reduced. A dimensional analysis is performed and several combinations of the key parameters for the swelling problem are studied in order to obtain different dimensionless parameters. Their validity is assessed using results from the scientific literature. It appears that this innovative approach enables a reasonably good description and prediction of the soil swelling behaviour.
- Subject
- swelling; oedometer; expansive soil; dimensional analysis; dimensionless number
- Identifier
- uon:6213
- Identifier
- http://hdl.handle.net/1959.13/802815
- Full Text
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