Liquefaction Behavior and Post-Liquefaction Volumetric Strain Properties of Low Plasticity Silt Sand Mixtures
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Tarih
2016
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info:eu-repo/semantics/openAccess
Özet
In this paper, the liquefaction behavior of silt-sand mixtures and post-liquefaction volumetric deformation properties were investigated. the study was performed on silt sand mixtures which were obtained during a foundation excavation in Bayraklı region of Izmir city in Turkey. in the study, undrained cyclic triaxial tests were conducted on samples having 8 different silt contents (0, 5, 10, 20, 40, 60, 80, 100%) in conformity with JGS 0542-2000 standard in order to reveal the effect of silt content on the liquefaction resistance of the samples. At the end of tests, output water amounts were measured with the help of a burette by opening the drainage valves in order to determine the volumetric deformation properties of the samples. in the liquefaction experiments, along with the increased silt contents the liquefaction criteria were determined by the void ratio concept between the coarse and fine grains instead of the relative density concept. With this perspective, threshold silt content in the liquefaction resistance of silt sand mixtures was also determined. the post-liquefaction volumetric deformation behavior of the samples was interpreted depending on the silt content.
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27
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ek
