3D and 2D Formulations of Incremental Stress-Strain Relations for Granular Soils

• Autorzy: Sawicki A.
• Języki publikacji: EN

Abstrakty

EN

3D formulation of incremental relations, describing pre-failure deformations of granular soils, is presented. The starting point are respective equations formulated previously for the axi-symmetrical configuration, as that in the tri-axial apparatus. These relations, proposed for particular configuration, are generalized in the form of tensor equations for the strain increments. Similarly, the loading/unloading criterion and the instability line have been generalized for 3D conditions. A kind of cross-isotropy of granular soil is taken into account. Then, the incremental stress-strain relations for the plane strain state are re-derived from general equations, as such conditions are most often used for simulations of practically important problems. The procedure proposed in this paper is practically oriented, as the soil parameters can be determined just from the tri-axial tests.

Słowa kluczowe

EN

granular soils; pre-failure deformations; instability; anisotropy; constitutive equation

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2008
• Tom: Vol. 55, nr 1-2
• Strony: 45--53
• Opis fizyczny: Bibliogr. 4 poz., il.

Twórcy

autor

Sawicki A.

• Institute of Hydro-Engineering PAS, ul. Kościerska 7, 80-328 Gdańsk-Oliwa, Poland,

Bibliografia

• 1. Sawicki A. (2007) A study on pre-failure deformations of granular soils, Archives of Hydro-Engineering and Environmental Mechanics, 54 (3), 183–206.
• 2. Sawicki A., Swidzinski W. (2007) Drained against undrained behaviour of sand, Archives of Hydro-Engineering and Environmental Mechanics, 54 (3), 207–222.
• 3. Sawicki A., Swidzinski W. (2008) The problem of loading and unloading in soil mechanics (in Polish), Proc. Conference Korbielów 2008, KILiW PAN, PZITB, to be published.
• 4. Swidzinski W. (2006) Compaction and Liquefaction Mechanisms of Non-Cohesive Soils, IBW PAN, Gdansk (in Polish).