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Elastic visco-plastic consolidation modelling of clay foundation at Berthierville test embankment by Zhu, Guofu; Yin, Jian-Hua is a Engineering article available to read on EtoBox.

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This paper applies for the "rst time a highly non-linear One-Dimensional Elastic Visco-Plastic (1-D EVP) model to the consolidation analysis of the clay layer underneath Berthierville test embankment in Quebec, Canada. This paper "rstly gives a brief description of the main equations of the Finite Element (FE) consolidation modelling incorporating the 1-D EVP model. Special issues encountered in the consolidation modelling of the "eld problem are addressed. Water head #uctuations at the upper and lower boundaries of the clay are considered by giving an appropriate de"nition of excess porewater pressure. An optimization procedure is suggested for the determination of the 1-D EVP model parameters. The determination of initial strains in the "eld is explained. The FE model can consider (a) multi-layered soil pro"le, (b) time-dependent loading and hydraulic boundary conditions and (c) di!erent constitutive models for di!erent soils (1-D EVP model for clay and Terzaghi's model for silty sand). A parametric FE modelling study is carried out to determine two uncertain parameters of the silty sand layer underlying the clay layer. It is found that the parameter m T a!ects the compressibilit

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Author

Zhu, Guofu; Yin, Jian-Hua

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0363-9061)

Published

2000

Language

EN

Field

Engineering (Physical Sciences)