LIMITATIONS OF THE TORSION SHEAR TEST

CULTIVATION IMPLEMENTS AND WHEELS EXERT HIGH PRESSURES ON THE SOIL AT RUPTURE. DUE TO THE EFFECTS OF PORE WATER PRESSURE IN THE SOIL, THE ULTIMATE SHEAR STRESS OF A CLAY APPROACHES AN ASYMPTOTIC VALUE AS THE DIRECT PRESSURE ACTING ON THE SOILS IS INCREASED. IT IS NOT CONVENIENT TO CARRY OUT TESTS WITH A TORSION SHEAR BOX AT HIGH VALUES OF DIRECT STRESS. THE TRIAXIAL TEST IS A PRACTICAL AND RELIABLE METHOD OF DETERMINING THE MOHR-COULOMB ENVELOPE FOR SOILS AT HIGH VALUES OF DIRECT PRESSURE. /RRL/A/

• Supplemental Notes:
  • Vol10, No2, PP 114-117, 1FIG, 5REF
• Authors:
  • Ocallaghan, J R
• Publication Date: 0

Media Info

• Serial:
  • Journal Agricultural Eng Res /UK/

Subject/Index Terms

• TRT Terms: Clay; Methodology; Mohr circles; Pore water pressures; Pressure; Shear stress; Soils; Triaxial shear tests
• Old TRIS Terms: Determination; Mohr envelope; Mohr-coulomb envelope
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00228774
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Aug 15 2004 1:47AM