ANISOTROPIC STIFFNESS MEASUREMENTS IN A STRESS-PATH TRIAXIAL CELL

Anisotropy plays a significant role in many geotechnical problems. This paper describes how anisotropic stiffness properties of soils can be assessed through stress path triaxial tests. Local strain instrumentation has been optimized to identify the linear elastic region of sand without sacrificing the ability to study behavior at strains up to 15%; the system described performs equally well with sands, silts, and clays. A novel technique has been developed in which multi-directional shear wave velocity measurements are combined with static tests to provide a complete description of the soil's cross-anisotropic elastic properties through a simple manipulation of classical elastic theory. Results obtained in tests on a dense sand are presented to demonstrate the system capabilities, show how the theoretical approach may be applied in practice, and display some interesting features of the soil's elastic anisotropy.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01496115
• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Kuwano, R
  • Connolly, T M
  • JARDINE, R J
• Publication Date: 2000-6

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 141-157
• Serial:
  • Geotechnical Testing Journal
  • Volume: 23
  • Issue Number: 2
  • Publisher: ASTM International
  • ISSN: 0149-6115
  • EISSN: 1945-7545
  • Serial URL: https://www.astm.org/products-services/standards-and-publications/geotechnical-testing-journal.html

Subject/Index Terms

• TRT Terms: Anisotropic materials; Anisotropy (Physics); Geotechnical engineering; Linear elasticity; S waves; Sandy soils; Soil mechanics; Soil science; Soil tests; Soils by properties; Stiffness; Strain measurement; Transportation engineering; Triaxial shear tests
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00794511
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 13 2000 12:00AM