Abstract
The initiation of static liquefaction of unsaturated sand was studied by an extended Mohr-Coulomb elasto-plasticity hardening model. The second-order work was used to check the initiation point of static liquefaction under undrained shear. The results showed that the mechanical behavior of unsaturated sands will be changed by the compressibility of gas. The critical stress ratio at the liquefaction instability point decreases with the saturation degree.
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The financial supports by the National Natural Science Foundation of China (No. 11372228 and No. 41672270) are gratefully acknowledged.
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Lu, X., Huang, M., Qian, J. (2017). Model Prediction of Static Liquefaction in Unsaturated Sands. In: Papamichos, E., Papanastasiou, P., Pasternak, E., Dyskin, A. (eds) Bifurcation and Degradation of Geomaterials with Engineering Applications. IWBDG 2017. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-319-56397-8_14
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DOI: https://doi.org/10.1007/978-3-319-56397-8_14
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