UNDRAINED ANISOTROPY AND PRINCIPAL STRESS ROTATION IN SATURATED SAND

This paper describes an investigation carried out in a new hollow cylinder apparatus into anisotropy and the effects of principal stress rotation in a medium-loose sand, tested under undrained conditions. Principal stresses have been rotated at a constant shear stress during both monotonic and cyclic loading. The experimental observations are described and then explained within a framework based on the concept of state boundary surfaces. The over-riding importance of initial anisotropy in determining the response of the sand to rotations in principal stress directions is demonstrated. Pore pressures are shown to be generated by rotation of principal stress directions at constant shear stress and their accumulation during cyclic principal stress rotation can lead to failure. (Author/TRRL)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 11-27
  • Serial:
    • GEOTECHNIQUE
    • Volume: 34
    • Issue Number: 1
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00390492
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Mar 29 1985 12:00AM