Drained cyclic behaviour of loose Dogs Bay sand

Geotechnique - Tập 62 Số 4 - Trang 281-289 - 2012
Susana López‐Querol1, M. R. Coop
1Universidad de Castilla La Mancha#TAB#

Tóm tắt

The results of drained cyclic triaxial tests performed on Dogs Bay sand (a carbonate sand) are discussed in this paper. For this sand it has been previously demonstrated that the critical state exists and is unique. The relationship between volumetric strains due to cyclic loading and the critical state of this material under monotonic conditions is explored here. Drained cyclic tests on loose samples have been carried out, applying different amplitudes of cyclic loading for samples that generally have initial states on the wet side of critical. The trends of behaviour are summarised, pointing out the relationship between initial state parameter, amplitude of cyclic loading and final change in the state parameter at equilibrium. Experimental evidence is also given to demonstrate that the sand has a memory of the volumetric strain that has previously occurred when different patterns of cyclic loading are consecutively applied and equilibrium has not been reached.

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Geotechnique

Tập 62 Số 4

281-289

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