Journal
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
Volume 159, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.soildyn.2022.107349
Keywords
Silty sand mixtures; Cyclic mobility; Cyclic liquefaction; 3D Iwan Iai constitutive model; Cyclic triaxial test
Funding
- French National Research Agency [Projet-ANR-17-CE22-0009]
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The main goal of this paper is to assess the reliability of a nonlinear hysteretic model in capturing the behavior of saturated silty sand mixtures under cyclic loading conditions. The parameters governing the liquefaction triggering are identified through laboratory tests, and the numerical results are in good agreement with the experimental ones. The effects of relative density, fine content, and confining pressure on the liquefaction resistance of silty sands are analyzed.
The main goal of this paper is to assess the reliability of a nonlinear hysteretic model to capture the behavior of saturated silty sand mixtures under cyclic loading conditions. The parameters governing the liquefaction triggering are identified using the results of standard laboratory tests (monotonic and cyclic consolidated undrained triaxial tests as well as resonant column tests) undertaken for reconstituted soil samples. Consequently, the uncertainty related with collected samples is reduced. The numerical results, obtained after calibration of the constitutive model, are in good agreement with the experimental ones and they are analyzed through the effects of relative density, fine content, and confining pressure in the liquefaction resistance of silty sands.
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