Modelling unsaturated soil behaviour during normal consolidation and at a critical state

Gallipoli, D., Gens, A., Chen, G.J. and D'Onza, F. (2008) Modelling unsaturated soil behaviour during normal consolidation and at a critical state. Computers and Geotechnics, 35(6), pp. 825-834. (doi: 10.1016/j.compgeo.2008.08.006)

Abstract

An analysis of results from published laboratory tests on Jossigny silt and Barcelona clayey silt is presented to confirm the existence of a unique capillary bonding function linking the quotient between unsaturated and saturated void ratio, at the same mean average skeleton stress, to a single capillary bonding scalar variable. The analysis confirms that the same capillary bonding function applies to both normally consolidated and critical stress states. The above two experimental sets with the addition of further published data for Speswhite Kaolin are also used to study the relationship between unsaturated critical shear strength, mean average skeleton stress and capillary bonding variable. The results of such analysis are assessed in the light of a similar modelling framework proposed in the literature.

• Item Type: Articles
• Additional Information: Special Issue on Unsaturated Soils: Models, Algorithms and Applications
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Gallipoli, Dr Domenico and D'Onza, Dr Francesca
• Authors: Gallipoli, D., Gens, A., Chen, G.J., and D'Onza, F.
• Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
• College/School: College of Science and Engineering > School of Engineering > Infrastructure and Environment
• Journal Name: Computers and Geotechnics
• ISSN: 0266-352X