E3S Web Conf.
Volume 92, 20197th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
|Number of page(s)||6|
|Published online||25 June 2019|
Deformation dependencies of sand stiffness
Aalborg University, Thomas Manns vej 23, 9220, Aalborg, Denmark
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Convention does not provide a solution combining drained and undrained response, loss and recovery of sand stiffness, all in one irregular loading sequence. Alas, such solution is necessary for designing offshore wind turbine foundations and predicting soil behavior during (and after) seismic events. To gain deeper understanding of the fundamental phenomenon governing disturbed sand behavior, unconventional testing procedures were attempted using a frictionless triaxial apparatus. The resulting observations revealed a new physical phenomenon (deformation dependent stiffness hysteresis loops). The new observations were then used to derive an unconventional model (BSM), which uses a strain (deformation) envelope.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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