DRAINED AND UNDRAINED STRESS-STRAIN BEHAVIOR OF SANDS SUBJECTED TO CYCLIC SHEAR STRESS UNDER NEARLY PLANE STRAIN CONDITIONS

A series of static drained and dynamic undrained cyclic shear tests of complete reversal were conducted to obtain fundamental information about stress-strain behavior of sands using a ring torsion apparatus to apply cyclic shear stresses under nearly plane strain condition. In the static drained tests, the relative density of specimens was ranged from 20-85 per cent and amplitudes of the cyclic shear stress were 0.21 & 0.33 kg/sq.cm under effective overburden pressure of 1.0 kg/sq.cm. Test results indicated that there were hyperbolic relationships between number of stress cycles n and volumetric strain accumulated up to the nth cycle, between n and shear modulus in the nth cycle, and between n and total energy absorbed in a unit volume up to the nth cycle, irrespective of initial relative density and of shear stress amplitudes. Dynamic undrained test results indicated that the ratio of the increment of pore water pressure per stress cycle to dynamic shear stress amplitude was proportional to the fourth power of dynamic shear stress amplitude to initial effective overburden pressure, for specimens of relative density of about 40 per cent. And this relationship was explained by using the above-mentioned stress-strain behavior of the static drained tests. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00380806
• Corporate Authors:

  Japanese Society of Soil Mech & Foundation Engrs

  Tokyo,   Japan 
• Authors:
  • Oh-oka, H
• Publication Date: 1976-9

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 19-31
• Serial:
  • SOILS AND FOUNDATIONS
  • Volume: 16
  • Issue Number: 3
  • Publisher: JAPANESE GEOTECHNICAL SOCIETY
  • ISSN: 0038-0806

Subject/Index Terms

• TRT Terms: Deformation curve; Dynamic tests; Dynamics; Measuring instruments; Pore water pressures; Sand; Saturated soils; Shear strength; Shear stress; Static tests; Strain (Mechanics); Stresses; Tests; Torsion
• Uncontrolled Terms: Plane strain; Undrained conditions
• ITRD Terms: 6155: Apparatus (measuring); 5473: Dynamics; 5762: Pore water pressure; 4105: Sand; 5531: Shear; 5575: Stress (in material); 6255: Test; 5512: Torsion
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00149685
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Aug 4 1977 12:00AM