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