DRAINED DEFORMATION-STRENGTH CHARACTERISTICS OF LOOSE SHIRASU (VOLCANIC SANDY SOIL) UNDER THREE DIMENSIONAL STRESSES

Pyroclastic flow deposits distributed in southern Kyushu, Japan, are called shirasu. In order to investigate the drained deformation-strength behaviour of shirasu in disturbed state, hydrostatic compression tests and radial shear tests using triaxial testing apparatus with independent stress-control systems were performed on cubical specimens of loose shirasu under three dimensional stresses. The thirteen radial shear stress paths on the deviatoric plane classified into five groups were given to the specimens. The test results indicated that shirasu specimens prepared by pluviation through water had an inherent cross-anisotropy. In the hydrostatic compression tests, the anisotropic behaviour occurred in compressive strains of less than 1%. In the radial shear tests, deformation-strength behaviour was dependent on the relationship between the direction of the specimen-deposition and the directions of the major and minor principal stresses. The change of the shear behaviour was caused by the change of dilatancy, the strain increment ratio, with the radial shear stress path. (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:
  • Haruyama, M
• Publication Date: 1985-3

Media Info

• Features: Figures; References;
• Pagination: p. 65-76
• Serial:
  • SOILS AND FOUNDATIONS
  • Volume: 25
  • Issue Number: 1
  • Publisher: JAPANESE GEOTECHNICAL SOCIETY
  • ISSN: 0038-0806

Subject/Index Terms

• TRT Terms: Anisotropy; Behavior; Compression; Compression tests; Deformation; Dilatancy; Drainage; Mathematical models; Mineral deposits; Principal stresses; Sandy soils; Shear strength; Shear tests; Soil mechanics; Soils; Strength of materials; Stresses; Tests; Triaxial shear tests; Volcanic deposits; Volcanic rock; Volcanoes
• Old TRIS Terms: Anisotropy; Drained deformation strength; Principal stress; Soil behavior; Stress path
• ITRD Terms: 9001: Behaviour; 5532: Compression; 5595: Deformation; 4041: Deposit (natural); 5531: Shear; 4156: Soil; 5544: Strength (mater); 5575: Stress (in material); 6255: Test; 9080: Three dimensional; 5566: Triaxial; 4002: Volcanic
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00451383
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: May 31 1986 12:00AM