Assessment of Dynamic Stability of Foundations on Saturated Sandy Soils
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 125, Issue 7
Abstract
This paper deals with the dynamic analysis of foundations in saturated soils. In the first part, a mathematical formulation is briefly outlined in which soil is considered as a two-phase medium comprising the soil skeleton and voids filled with a viscous fluid. Such formulation is suitable for describing a solid-fluid transition associated with the liquefaction phenomenon. Subsequently, the notion of dynamic stability is reviewed and a simple criterion is introduced, leading to the definition of a stability factor. The mathematical framework is illustrated by a numerical example involving a foundation subjected to seismic excitation. The effect of viscosity of liquefied material on the stability of the system is examined.
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Information & Authors
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 125 • Issue 7 • July 1999
Pages: 576 - 582
History
Published online: Jul 1, 1999
Published in print: Jul 1999
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