STRENGTH AND DEFORMATION PROPERTIES OF ROCK-LIKE MATERIALS TESTED IN TRIAXIAL COMPRESSION

A study of the influence of strain rate on strength using different confining pressures shows that with the exception of the unconfined state this dependence remains unaffected. In the absence of satisfactory criteria for predicting the strength of rock-like materials under multi-axial states of stress a simple construction, using triaxial results, is suggested. Results available in literature are examined in order to isolate parameters having an effect on the strength-confining pressure relationship. The rate of change of both strength and deformation properties was found to decrease with increasing confinement. Transition of failures from brittle to ductile took place at confining pressures approximately equal to the unconfined strength values. (A). The number of the covering abstract of the conference is IRRD abstract no. 213776.

• Supplemental Notes:
  • Presented at the First Australian Conference on Engineering Materials.
• Corporate Authors:

  University of New South Wales

  School of Civil Engineering, Anzac Parade
  Kensington, New South Wales  Australia  2033
• Authors:
  • Dhir, R K
  • SANGHA, C M
• Conference:
  • Presented at the First Australian Conference on Engineering Materials.
• Publication Date: 0

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 517-27

Subject/Index Terms

• TRT Terms: Brittleness; Compression; Deformation; Ductility; Failure; Pressure; Rocks; Strain (Mechanics); Strength of materials; Tests; Triaxial shear tests
• Uncontrolled Terms: Confinement; Strain rate; Triaxial compression
• Old TRIS Terms: Brittle failures
• ITRD Terms: 5900: Brittleness; 5532: Compression; 5595: Deformation; 5909: Ductility; 5520: Failure; 5412: Pressure; 4154: Rock; 5544: Strength (mater); 6255: Test; 5566: Triaxial
• Subject Areas: Geotechnology; Highways; I43: Rock Mechanics;

Filing Info

• Accession Number: 00129582
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Conf Paper
• Files: ITRD, TRIS
• Created Date: Apr 7 1976 12:00AM