THAW-CONSOLIDATION TESTS ON REMOULDED CLAYS

A GENERAL SOLUTION TO THE PROBLEM OF ONE-DIMENSIONAL THAW- CONSOLIDATION HAS BEEN FORMULATED BY MORGENSTERN AND NIXON (CAN. GEOTECH. J. 8, P. 558, 1971): IN ORDER TO ASSESS THE VALIDITY OF THE THEORY IT WAS NECESSARY TO DEVELOP A SPECIAL OEDOMETER (PERMODE) WHICH COULD IMPOSE THE NECESSARY THERMAL AND STRESS BOUNDARY CONDITIONS FOR ONE- DIMENSIONAL THAW-CONSOLIDATION. THE PERMODE PERMITS THE MEASUREMENT OF SETTLEMENTS, TEMPERATURES AT VARIOUS DEPTHS ON THE SIDE OF THE SAMPLE, AND EXCESS PORE PRESSURES AT THE BASE OF THE SAMPLE DURING THAW-CONSOLIDATION. CONTROLLED THAW-CONSOLIDATION TESTS WERE CARRIED OUT ON THREE TYPES OF REMOULDED CLAYS. THE RESULTING DATA SHOWED THAT THE EXCESS PORE PRESSURES AND THE DEGREE OF CONSOLIDATION IN A THAWING SOIL DEPEND PRIMARILY ON THE THAW-CONSOLIDATION RATIO. THE RESULTS OBTAINED DEMONSTRATE THAT THE THEORY ADEQUATELY REPRESENTS THE SOIL BEHAVIOR. APPLICATIONS OF THE THEORY IN PRACTICE ARE INDICATED.

  • Authors:
    • MORGENSTERN, N R
    • Smith, L B
  • Publication Date: 1973

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 25-40
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00233915
  • Record Type: Publication
  • Source Agency: Roads & Transportation Assoc /Canada
  • Files: TRIS
  • Created Date: May 15 1974 12:00AM