USE OF FREE ENDS IN TRIAXIAL TESTING OF CLAYS

Chandler discusses consolidated undrained tests conducted recently on undisturbed samples of a stiff Keuper marl. The tests were on specimens with rough end platens and specimens with lubricated ends. The results obtained show that the effective strength envelope is independent of the type of sample. The writer discusses the properties of the Keuper marl, drainage, rate of strain and rate of feed and pore pressures. Results are given of tests on short samples and on orthodox specimens. Effective stress plots at maximum deviator stress for specimens of Deuper marl are given. The authors show that the use of short samples with free ends enable much faster rates of strain to be used while measuring pore pressures. The tests show that the use of free ends in triaxial testing does not result in any significant change in the effective stress failure envelope.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Discussers:
  • CHANDLER, R J
• Publication Date: 1966-7

Media Info

• Features: Figures; Tables;
• Pagination: p. 98-100
• Serial:
  • Journal of Soil Mechanics & Foundations Div
  • Volume: 92
  • Issue Number: SM2

Subject/Index Terms

• TRT Terms: Clay; Deviatoric stress; Drainage; Lubrication; Marl; Mechanical strain; Platens; Pore pressure; Shear tests; Specimens; Triaxial shear tests
• Uncontrolled Terms: Strain rate
• Old TRIS Terms: Deviator stress; Drainage rate
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00095890
• Record Type: Publication
• Report/Paper Numbers: Discussion
• Files: TRIS
• Created Date: Jun 10 1975 12:00AM