SYMPOSIA PAPER Published: 01 January 1986
STP34626S

Controlled-Strain, Controlled-Gradient, and Standard Consolidation Testing of Sensitive Clays

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The objectives of this paper are threefold: (1) to compare the results obtained from constant rate of strain (CRS) and controlled-hydraulic gradient (CHG) consolidation tests with those obtained from incremental loading tests, (2) to compare the experimental data obtained in this study with the results of other investigators, and (3) to determine the possibility of using either CRS or CHG testing or both in geotechnical investigations dealing with soft clays of Eastern Canada.

The results of all the consolidation tests yield a unique relationship between preconsolidation pressure and strain rate. Both CRS and CHG tests performed following recommended procedures give values of the preconsolidation pressures which are higher than both those obtained in incremental load tests and those inferred from field studies. Both a simple creep law and a modified equation based on the rate process theory are found to adequately represent the observed soil response.

Author Information

Silvestri, V
Department of Civil Engineering, École Polytechnique, Montreal, P.Q., Canada
Yong, RN
Geotechnical Research Centre, McGill University, Montreal, P.Q., Canada
Soulié, M
Department of Civil Engineering, École Polytechnique, Montreal, P.Q., Canada
Gabriel, F
Department of Civil Engineering, École Polytechnique, Montreal, P.Q., Canada
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Details
Developed by Committee: D18
Pages: 433–450
DOI: 10.1520/STP34626S
ISBN-EB: 978-0-8031-4962-5
ISBN-13: 978-0-8031-0446-4