A COMPRESSION MODEL FOR NON-BRITTLE SOFT CLAYS AND PEAT

A simple and effective model is presented for the calculation of the compression of non-brittle soft clays and peat. It is based on a unique relationship between stress, strain and creep strain rate. It combines features of existing models in an eclectic fashion and some new features. The treatment of unload-reload behaviour is unique to this model, as is the use of natural strain. A new measure - intrinsic time - is introduced to describe creep. The constitutive behaviour is combined with hydraulic storage and flow in a finite strain consolidation equation. A simplified derivation of the finite strain equation is presented. The model is shown to fit accurately the entire stress-strain-time response of a soft organic clay and a peat subjected to incremental loading oedometer tests. Some special effects of the model are shown. (A)

  • Availability:
  • Corporate Authors:

    Thomas Telford Limited

    London,   United Kingdom 
  • Authors:
    • DEN HAAN, E J
  • Publication Date: 1996-3

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 1-16
  • Serial:
    • GEOTECHNIQUE
    • Volume: 46
    • Issue Number: 1
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00724143
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Aug 19 1996 12:00AM