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Published in:
2005 | OriginalPaper | Chapter
Undrained Isotropic Compression of Soil
Author : Jack P. Oostveen
Published in: Unsaturated Soils: Experimental Studies
Publisher: Springer Berlin Heidelberg
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This paper deals with a theoretical description of the undrained and drained behaviour of unsaturated soils under isotropic load. By taking into account the compressibility of the solid mass and the fluid/gas mixture inside the pores a theoretical relation between the pore water coefficient (B) and the saturation (S
r
) is derived, which is shown to be similar to measured data given in the literature. The approach described involves natural strains, schematizations of the solid mass and the fluid/gas mixture and the use of different boundary conditions for respectively B=1 and B<1.