Creep Prediction of an Undisturbed Sensitive Clay

Gilberto Alexandre (1) , Ian Martins (1) , Paulo Santa Maria (1)

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

This paper presents numerical predictions for the behavior of the sensitive marine Haney Clay subject to undrained creep and constant load tests. The predictions were carried-out based on the framework model proposed by Martins (1992) and in accordance with concepts developed by Terzaghi (1941), Taylor (1942, 1948), Bea (1960), Lo (1969a, 1969b), Bjerrum (1973), Finn and Snead (1973), Vaid and Campanella (1977) and others. The complete differential equations as well as simple numerical procedures used to predict the undrained creep and constant load tests are presented. In addition, analytical solutions are presented for the simplified differential equations of both undrained creep and constant load tests. It is shown that satisfactory predictions were achieved both qualitatively and quantitatively for most of the 11 undrained creep and 9 constant load tests.

Mots clés: Undrained creep; Constitutive equations; Soil behavior; Strain rate effects; Time effects; Viscosity; Adsorbed water layer

Domaines: Génie civil

Gilberto Alexandre, Ian Martins, Paulo Santa Maria. Creep Prediction of an Undisturbed Sensitive Clay. 2013. ⟨hal-00880388⟩