Author(s)

A.N. Parathiras

Abstract

The effects of fast rates of displacement and shearing direction on the residual strength of plastic soils have been investigated by means of the modified IC/NGf ring shear apparatus. In analysing the test results, the fast residual strength (i.e. the steady residual strength measured at fast rates of displacement) is compared with the slow residual strength (i.e. the residual strength measured at 1.5 x 10^ cm/sec). It is concluded that in the absence of increased pore pressures all plastic soils exhibit an increase in strength and their fast residual strength may be as much as 250 % higher than their slow residual strength. 1 Introduction The effects of varying rates of displacement on the residual strength of soils has been the focus of several preceding investigations which mainly concentrated o

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