Stress Relaxation Under Various Stress and Drainage ConditionsReport as inadecuate




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* Corresponding author 1 COPPE-UFRJ - COPPE - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia

Abstract : This paper presents predictions made for stress relaxation tests carried out by Garcia 1996 in the edometric apparatus in a soft organic clay from Rio de Janeiro, Brazil. The predictions were made based on the framework of the model developed by Martins 1992, as modified by Alexandre 2006, and in agreement with concepts and ideas developed by Terzaghi 1941, Taylor 1942 and others. The differential equation of the stress relaxation test, its solution, the assessment of the parameters of the model as well as predictions made for all tests are shown in this paper. It is shown that satisfactory agreement between predictions and tests results were obtained for the soft clay tested by Garcia 1996. In addition, discussions about stress relaxation tests carried out under different conditions triaxial and hydrostatic and about the variation of K0 during stress relaxation and secondary consolidation are also presented in this paper.

Keywords : Stress relaxation Constitutive equations Soil behavior Rate effects Time Effects Viscosity Adsorbed water layer K0





Author: Gilberto Alexandre - Ian Martins -

Source: https://hal.archives-ouvertes.fr/



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