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Stiffness of fine-grained soil at very small strains

Viggiani, G and Atkinson, JH (1995) Stiffness of fine-grained soil at very small strains. Geotechnique, 45. pp. 249-265. ISSN 0016-8505

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The stiffness of soil at very small strain G0 is a useful parameter for characterizing the non-linear stressstrain behaviour of soil for monotonic loading and it is required for analyses of the dynamic and small strain cyclic loading of soils. Tests were carried out on fine-grained soils in a hydraulic triaxial cell fitted with bender elements and with local axial gauges. From the results of these tests simple expressions were obtained which describe the variation of G0 with current state in terms of the current stress and overconsolidation ratio. The parameters in these expressions were found to depend on plasticity index. The simple expressions for G0 were found to apply generally at larger strains, with the values for the parameters also depending on the current strain. Values of G0 measured in laboratory tests on reconstituted London clay agree well with values measured in tests on undisturbed samples and in field tests which make allowance for the different states in the various tests. © 1995, Thomas Telford Ltd. All rights reserved.

Item Type: Article
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 02 Oct 2017 20:25
Last Modified: 27 Oct 2020 07:52
DOI: 10.1680/geot.1995.45.2.249