Dynamic instability of clays: an energy approach
Identifieur interne : 002131 ( Main/Exploration ); précédent : 002130; suivant : 002132Dynamic instability of clays: an energy approach
Auteurs : Eugene A. Voznesensky [Russie] ; Steinar Nordal [Norvège]Source :
- Soil Dynamics and Earthquake Engineering [ 0267-7261 ] ; 1998.
Abstract
The dynamic instability of any soil is based on the ability to accumulate from cycle to cycle a part of the energy to be dissipated. Using the general thermodynamic approach in combination with high resolution experiments it is possible to analyze the transformations of energy in soil under dynamic loading. Undisturbed specimens of two Norwegian clays, sufficiently different in their engineering properties, were used in a number of undrained cyclic triaxial tests to study the influence of confining stress, coefficient of earth pressure at rest (K0), dynamic stress amplitude and frequency of loading in the development of instability in the clays. This paper discusses the unit dissipated energy and the unit activation energy as possible energy criteria for evaluation of dynamic instability in soils.
Url:
DOI: 10.1016/S0267-7261(98)00043-8
Affiliations:
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