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On the modelling of anisotropy and destructuration of soft clays within the multi-laminate framework
AbstractThe possibilities and limitations of modelling the behaviour of soft natural clays within the multi-laminate framework are discussed in this paper. The presented version of the constitutive model was developed to describe two important characteristics of the soft clay behaviour: strength anisotropy and destructuration. Viscous effects are not taken into account. Strength anisotropy of the soft clay is achieved using the multi-laminate model with controlled spatial distribution of the preconsolidation pressure over the sampling planes. This spatial distribution is related to the initial stress state and is additionally adjusted by the distribution of bonding. Bonding or structural anisotropy is not permanent in the model and may be reduced during the process of destructuration. Interrelation between stress-induced and bonding anisotropy is shown by investigating the shape changes of a macro yield surface resulting from the multi-laminate modelling. Performance of the new model is demonstrated by standard element tests and also by the boundary value problem of an embankment on soft ground.
On the modelling of anisotropy and destructuration of soft clays within the multi-laminate framework
AbstractThe possibilities and limitations of modelling the behaviour of soft natural clays within the multi-laminate framework are discussed in this paper. The presented version of the constitutive model was developed to describe two important characteristics of the soft clay behaviour: strength anisotropy and destructuration. Viscous effects are not taken into account. Strength anisotropy of the soft clay is achieved using the multi-laminate model with controlled spatial distribution of the preconsolidation pressure over the sampling planes. This spatial distribution is related to the initial stress state and is additionally adjusted by the distribution of bonding. Bonding or structural anisotropy is not permanent in the model and may be reduced during the process of destructuration. Interrelation between stress-induced and bonding anisotropy is shown by investigating the shape changes of a macro yield surface resulting from the multi-laminate modelling. Performance of the new model is demonstrated by standard element tests and also by the boundary value problem of an embankment on soft ground.
On the modelling of anisotropy and destructuration of soft clays within the multi-laminate framework
Cudny, Marcin (author) / Vermeer, Pieter A. (author)
Computers and Geotechnics ; 31 ; 1-22
2003-12-08
22 pages
Article (Journal)
Electronic Resource
English
On the modelling of anisotropy and destructuration of soft clays within the multi-laminate framework
| Online Contents | 2004
Modelling the destructuration of soft natural clays
| British Library Conference Proceedings | 2001
Modelling destructuration and anisotropy of a natural soft clay
| British Library Conference Proceedings | 2002
Influence of anisotropy and destructuration on undrained shearing of natural clays
| British Library Conference Proceedings | 2002