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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 5    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 5,May 2012
Evaluation Of Finite Element Formulation For One-dimensional Consolidation
Full Text(PDF, )  PP.I021-I025  
Author(s)
Wan Nur Firdaus Wan Hassan, Hisham Mohamad
KEYWORDS
—Consolidation, uncoupled approach,saturated soil, Terzaghi’s theory, Finite Element Method (FEM), implicit.
ABSTRACT
Consolidation process is defined as the progress of which excess pore water pressure generated by external loading dissipated out of the soil pores and subsequently causing the soil to compress. The ability to predict the dissipation of the excess pore water pressure is important in the assessing the performance of foundations. In this paper, a formulation of Finite Element (FE) method is developed for solving uncoupled consolidation problem and its validity is examined. The basic matrix equations for uncoupling analysis using finite elements are derived based on the Galerkin's weighted residual method. Spatial variables are discretized using the same shape function and a fully implicit scheme is used to discretize the time domain. Using the MATLAB program for writing the FE code, the results are compared with that obtained by classic Terzaghi's one dimensional consolidation theory. The FE analysis showedgood agreement with the closed form solution.
References
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