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:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
• 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

• TRT Terms: Brittleness; Clay; Compressibility; Compression; Consolidation; Mathematical models; Organic compounds; Peat; Soil stabilization; Tests
• ITRD Terms: 5900: Brittleness; 4177: Clay; 5905: Compressibility; 5532: Compression; 5791: Consolidation (soil); 6473: Mathematical model; 7366: Organic; 4349: Peat; 6255: Test
• Subject Areas: Geotechnology;

Filing Info

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