TITLE

Theoretical Study and Experimental Verification of the Consolidation Stage of Triaxial Test

AUTHOR(S)
LI Shunqun; CHENG Xuelei; Yang Sen
PUB. DATE
August 2013
SOURCE
Journal of Convergence Information Technology;Aug2013, Vol. 8 Issue 13, p113
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The consolidation stage in conventional triaxial test is of a three-dimensional compression under spherical stress but seepage occurring only in the vertical direction. Therefore, Terzaghi's one-dimensional consolidation, in which strain only induced in vertical direction, is very different from the consolidation in triaxial test and can't be directly utilized to solve the problem. In this paper, equations to describe the water pressure dissipation in consolidation phase of the conventional triaxial test are constructed based on the effective stress principle, Darcy's law and linear materials assumption. Furthermore, the power series solution based on the method of separation of variables, the numerical result from the method of the finite element, is provided to solve the constructed equations. Analysis of numerical results shows that the convergences of the power series solution at the initial stage of the consolidation is relatively poor and will become more stable with the consolidation progress continue. Comparing with the triaxial test of WF effective stress path completed in double pressure chamber shows that the constructed equation can reveal the main features of the consolidation stage in the triaxial test.
ACCESSION #
100205589

 

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