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A Study on Pre-Failure Deformations of Granular Soils

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A simple model describing pre-failure deformations of granular soils is derived on the basis of a wide range of experimental data. The model is defined by two incremental equations describing the volumetric and deviatoric strains. Functions appearing in governing equations were determined from experiments performed in the triaxial apparatus, with additional measurements of lateral strains for some simple stress paths. These functions are different for loading and unloading, and have different shapes for contractive and dilative soil samples. The instability line is built into the structure of the model. The incremental equations were applied to predict the soil behaviour during anisotropic compression, including determination of the K0-line. Some basic statistical characteristics of the initial density index of investigated soils and deformations during isotropic compression are presented.
Opis fizyczny
Bibliogr. 19 poz., il.
  • Institute of Hydro-Engineering Polish Academy of Sciences, ul. Kościerska 7, 80-328 Gdańsk, Poland,
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