MINIMUM UNDRAINED STRENGTH VERSUS STEADY-STATE STRENGTH OF SANDS

The general validity is explored of observations on two sands. The current understanding of the undrained behavior of sands is reviewed with emaphasis on the limiting conditions that control the modes of failure. Undrained trixial tests (CIU) on various sands are reanalyzed in terms of conditions leading to the LF and UF (upper and lower bounds of steady-state strength defined upper and lower lines in a void ratio-effective stress space) lines. An extension of the framework proposed by Castro (1969) is presented in a form that permits the differentiation between steady-state strength on the UF line and minimum strength on the LF line. The study has developed a conceptual framework for the prediction of undrained behavior of sands during monotonic loading. The undrained behavior of sands under monotonic loading can be characterized in terms of 5 regions in a state diagram (void ratio versus mean principal effective stress). Other study conclusions are listed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339410
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • KONRAD, J M
• Publication Date: 1990-6

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 948-963
• Serial:
  • Journal of Geotechnical Engineering
  • Volume: 116
  • Issue Number: 6
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9410

Subject/Index Terms

• TRT Terms: Effective stress; Failure; Sand; Steady state; Strength of materials; Triaxial shear tests; Undrained shear strength; Undrained shear tests; Void ratios
• Uncontrolled Terms: Undrained tests
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00495283
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 31 1990 12:00AM