SYMPOSIA PAPER Published: 01 January 1988
STP29084S

Triaxial Relaxation Tests on a Soft Clay

Source

Results of consolidated undrained triaxial relaxation tests on a soft sensitive clay of eastern Canada are presented and discussed. The initial consolidation phases of the traxial tests are carried out under both isotropic and anisotropic stress conditions.

The results show that pore water pressures remain approximately constant during the relaxation phases of the tests. The phenomenological model developed by Prevost (Journal of the Geotechnical Engineering Division, ASCE, Vol. 102, No. GT12, 1976, pp. 1245–1259) describes the observed response quite well. In addition, because the clay possesses a well-defined volumetric yield curve, the position of this curve should be taken into account when analyzing the resuls. Finally, triaxial test procedure and equipment modifications used in the laboratory investigation are fully described.

Author Information

Silvestri, V
Civil Engineering Department, École Polytechnique, Montreal, Quebec, Canada
Soulié, M
Civil Engineering Department, École Polytechnique, Montreal, Quebec, Canada
Touchan, Z
Civil Engineering Department, École Polytechnique, Montreal, Quebec, Canada
Fay, B
Soil Mechanics Laboratories, École Polytechnique, Montreal, Quebec, Canada
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Details
Developed by Committee: D18
Pages: 321–337
DOI: 10.1520/STP29084S
ISBN-EB: 978-0-8031-5048-5
ISBN-13: 978-0-8031-0983-4