YIELDING AND CRITICAL STATE OF A COLLAPSIBLE UNSATURATED SILTY SOIL

Isotropic and anisotropic compression tests, and drained triaxial shear tests were performed on a collapsible unsaturated silty soil under various suctions. The results show that the concepts of yielding and critical state originally developed for saturated clays can be applied to this unsaturated material when the matrix suction is considered as an independent variable. Pre-yield and post-yield behaviour is clearly defined, the yield curve increases in size with suction, and the effect of suction on the critical state strength decreases with increasing net mean stress. (A)

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

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • MAATOUK, A
  • LEROUEIL, S
  • LA ROCHELLE, P
• Publication Date: 1995-9

Language

• English

Media Info

• Features: References;
• Pagination: p. 465-77
• Serial:
  • GEOTECHNIQUE
  • Volume: 45
  • Issue Number: 3
  • Publisher: Thomas Telford Limited
  • ISSN: 0016-8505

Subject/Index Terms

• TRT Terms: Clay; Compression; Creep; Mathematical analysis; Percent saturation; Soil mechanics; Soil suction; Soils; Stresses; Test procedures; Ultimate load design
• ITRD Terms: 6471: Analysis (math); 4177: Clay; 5532: Compression; 4732: Creep (mater); 5907: Degree of saturation (mater); 6452: Limit; 4156: Soil; 5755: Soil mechanics; 5575: Stress (in material); 5771: Suction; 6288: Test method
• Subject Areas: Design; Geotechnology;

Filing Info

• Accession Number: 00715839
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jan 31 1996 12:00AM