STRENGTH ANISOTROPY IN KAOLINITE CLAY

The note presents the results of tests conducted to study the influence of several maximum past pressures on the variation of the ratio ks with the overconsolidation ratio ocr. Ks is the ratio of undrained strength of the horizontal specimen to undrained strength of the vertical specimen. The samples were consolidated in stages to different maximum past pressures 1,2,3 and 4 kg/sq.cm. And were unloaded to different final pressures. They were allowed to rebound one dimensionally so that samples could be obtained at ocr's ranging from 1 to 20. It was found that ks increased with ocr for all samples irrespective of maximum past pressures to which they were consolidated. This is attributed to changes in the in situ conditions or the anisotropy in in situ stresses which occur during overconsolidation. All the samples showed an anisotropy in strength at the condition KO = 1 whereas theoretically the soil should exhibit isotropy. It is suggested that this could be due to the influence of anisotropy in fabric. /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:
  • Bhaskaran, R
• Publication Date: 1974-12

Media Info

• Features: Figures; References;
• Pagination: p. 674-678
• Serial:
  • GEOTECHNIQUE
  • Volume: 24
  • Issue Number: 4
  • Publisher: Thomas Telford Limited
  • ISSN: 0016-8505

Subject/Index Terms

• TRT Terms: Anisotropy (Physics); Clay; Consolidations; Drainage; Isotropy; Kaolinite; Loads; Pressure; Samples; Strength of materials; Stresses
• Old TRIS Terms: Anisotropy; Sample (Material)
• ITRD Terms: 4177: Clay; 5791: Consolidation (soil); 2937: Drainage; 5917: Isotropic; 4189: Kaolinite; 5567: Load; 5412: Pressure; 6251: Sample (mater); 5544: Strength (mater); 5575: Stress (in material)
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00125166
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Nov 18 1975 12:00AM