EXPERIMENTAL ASPECTS AND MODELLING OF THE BEHAVIOUR OF SOILS WITH A NEGATIVE PRESSURE

The paper presents different aspects of the behaviour of soils with a negative pore pressure. The importance of the saturated domain is highlighted by drying tests on slurries or consolidated samples, and the validity of the classical effective stress concept in this case is recalled. A micromechanical model made of isodiametral spheres was developed to interpret the results of tests on unsaturated samples and the approach is experimented on several results of the literature and on triaxial tests carried out at the Ecole Centrale de Paris. The paper also points out the limits of this model, especially in the case of very dry soils with large overconsolidation ratios where brittle failure occurs. (A) For the covering abstract see IRRD 881647.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 57-62

Subject/Index Terms

Filing Info

  • Accession Number: 00729068
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 90-5410-583-6
  • Files: ITRD
  • Created Date: Dec 12 1996 12:00AM