UNDRAINED MULTIDIRECTIONAL DIRECT SIMPLE SHEAR BEHAVIOR OF COHESIVE SOIL

The foundation soil of an offshore Arctic gravity structure is subjected to complex loading conditions. In addition to radial shear stresses induced by the weight of a structure, large horizontal shear forces from ice loads can cause large rotations and even reversal in the direction of horizontal shear stresses acting on soil elements within the foundation soil. Researchers developed the Multidirectional Direct Simple Shear (MDSS) apparatus to model, at the element level, stress states. Using normally consolidated Boston Blue Clay (BBC), tests were performed at varying 0 angles using both the Geonor DSS and the MDSS to determine the influence of the angle between the gravity-loading shear stress and the ice-loading shear stress on the measured stress-strain strength behavior of BBC. This paper describes the test soil, anisotropic consolidation, and subsequent undrained shear methods used in the test program and presents details on the test results.

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 91-98
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00716500
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 23 1996 12:00AM