ISSN: 0149-6115
Page Count: 7

Influence of Peripheral Velocity on Vane Shear Strength of an Artificial Clay

Biscontin, G
Graduate student researcher and associate professor,University of California,

Pestana, JM
Graduate student researcher and associate professor,University of California,

(Received 29 November 1999; accepted 23 March 2001)

Abstract

Shearing rate is among the most important factors affecting the undrained shear strength of clays. In particular, for seismic or storm-wave loading conditions, the shearing rate is much higher than that used in many common laboratory or field tests. The testing program described here evaluates the effect of peripheral velocity on the undrained strength inferred from the shear vane test. The study was conducted on a lightly cemented bentonite-kaolinite mixture manufactured in the laboratory, which possesses many characteristics similar to those of natural materials. Results show that the shear strength increases with increasing peripheral velocity, while the residual shear strength seems to be nearly independent of rotation rate.

Keywords:
field vane test, rate effect, undrained shear strength

Paper ID: GTJ11140J
DOI: 10.1520/GTJ11140J
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