DETERMINATION OF CONSOLIDATION CONSTANTS OF SATURATED CLAYS
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概要
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A general theory for the three-dimensional deformation of porous materials is presented to formulate a boundary value problem. The theory deals with a two-phase material consisting of viscoelastic skeleton and incompressible water. The effective stress-strain relationship of the viscoelastic skeleton is assumed to follow the linear theory of viscoelasticity developed by Gurtin and Sternberg which is based on the Stieltjes convolution.In the latter half of this paper, the triaxial compression creep test is analyzed as a boundary value problem. In the triaxial compression creep test a cylindrical sample is used which is subjected to the radial and axial compressive stresses under drained conditions. Drainage from a sample takes place only at its cylindrical wall and not on its ends. Under these conditions, the solution is obtained through the Laplace transformation. The deformation and the effective stress in a sample are obtained by applying the inverse Laplace trasformation. The solution reveals that the deformation of a sample is composed of two parts, one is the immediate change which is caused by the deviator stress, the other is the time dependent change which is caused by the mean effective stress.
- 社団法人地盤工学会の論文
- 1972-12-15