Results and Predictions of Imperfect Stress Relaxations Tests for the Reconstituted Onsøy Clay

Gilberto Alexandre (1) , Ian Martins (2)

1 SRL - Schmertmann Research Laboratory
2 COPPE-UFRJ - Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia

This paper presents results of 3 imperfect stress relaxation tests carried out on reconstituted Onsøy clay in the edometric apparatus as well as predictions made using the model proposed by Martins (1992) as modified by Alexandre (2006). The predictions presented herein were made in accordance to Alexandre and Martins (2013) where the soil viscosity function was assumed to follow a power law of the strain rate and also considering the soil to obey a logarithmic viscous function. Comparison between predictions and experimental results shows that satisfactory agreement were achieved for the 3 tests. However, the predictions using the logarithmic viscous function can be considered better than the ones made with the power law function.

Mots clés: Stress relaxation; constitutive equations; clay

Domaines: Génie civil

Gilberto Alexandre, Ian Martins. Results and Predictions of Imperfect Stress Relaxations Tests for the Reconstituted Onsøy Clay. 2014. ⟨hal-00982641v3⟩