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/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • Wong, PKK
  • Mitchell, R J
• Publication Date: 0

Language

• English

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

• TRT Terms: Anisotropy (Physics); Axis; Bonding; Creep; Deformation; Deformation curve; Loads; Plasticity; Sensitive clays; Soil samplers; Strain (Mechanics); Stresses; Structural analysis; Tests; Theory
• Uncontrolled Terms: Plane (Mathematics); Plane strain
• Geographic Terms: Canada
• Old TRIS Terms: Anisotropy
• ITRD Terms: 6405: Axis; 8018: Canada; 4732: Creep (mater); 5595: Deformation; 5567: Load; 6419: Plane; 5922: Plasticity; 4197: Sensitive clay; 5575: Stress (in material); 6255: Test; 9078: Theory
• Subject Areas: Geotechnology; Highways;

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