YIELDING AND PLASTIC FLOW OF SENSITIVE CEMENTED CLAY

The stress-strain relations of a cemented sensitive clay are studied experimentally by loading soil samples along different effective stress paths under axisymmetric and plane strain conditions. The soil behaviour is considered to be quasi-elastic work-hardening plastic. In the quasi-elastic range the soil may be considered isotropic but the relevant parameters are stress state dependent. Initial yielding is associated with the breaking down of cementation bonds and a unique yield envelope, independent of stress path, is defined. Based on an experimentally defined non-associated flow rule, a plasticity theory is developed to describe the post-yield stress-strain behaviour of cemented sensitive soils. Reasonable agreement is obtained between theoretical predictions and experimental results. Anisotropic yielding is also considered. (A) /TRRL/

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 763-782
  • Serial:
    • GEOTECHNIQUE
    • Volume: 25
    • Issue Number: 4
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00134226
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 4 1976 12:00AM