Modelling the unsaturated behaviour of structured soils

M. Rouainia; J. M. Pereira

Modelling the unsaturated behaviour of structured soils

M. Rouainia
, J. M. Pereira

Newcastle University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

The mechanical behaviour of natural clays is significantly affected by their in situ or initial structure in the form of cementation or interparticle bonding. This behaviour can differ substantially from the behaviour of reconstituted clays. In this paper, a constitutive model that combines unsaturated and structured behaviour is proposed. The model is capable of accounting for the phenomenon of volumetric collapse upon wetting and the stiffening effect that suction has on the soil skeletal response. Illustrative numerical results for isotropic consolidated tests on both on saturated and unsaturated compressed samples of Sao Paolo soil demonstrate the potential of the proposed model.

Original language	English
Title of host publication	Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils
Pages	939-944
Number of pages	6
Publication status	Published - 1 Dec 2011
Event	5th International Conference on Unsaturated Soils - Barcelona, Spain Duration: 6 Sept 2010 → 8 Sept 2010

Publication series

Name	Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils
Volume	2

Conference

Conference	5th International Conference on Unsaturated Soils
Country/Territory	Spain
City	Barcelona
Period	6/09/10 → 8/09/10

Cite this

@inproceedings{cd85694b55954266a4c5abde90e99585,

title = "Modelling the unsaturated behaviour of structured soils",

abstract = "The mechanical behaviour of natural clays is significantly affected by their in situ or initial structure in the form of cementation or interparticle bonding. This behaviour can differ substantially from the behaviour of reconstituted clays. In this paper, a constitutive model that combines unsaturated and structured behaviour is proposed. The model is capable of accounting for the phenomenon of volumetric collapse upon wetting and the stiffening effect that suction has on the soil skeletal response. Illustrative numerical results for isotropic consolidated tests on both on saturated and unsaturated compressed samples of Sao Paolo soil demonstrate the potential of the proposed model.",

author = "M. Rouainia and Pereira, \{J. M.\}",

year = "2011",

month = dec,

day = "1",

language = "English",

isbn = "9780415604307",

series = "Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils",

pages = "939--944",

booktitle = "Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils",

note = "5th International Conference on Unsaturated Soils ; Conference date: 06-09-2010 Through 08-09-2010",

}

Rouainia, M & Pereira, JM 2011, Modelling the unsaturated behaviour of structured soils. in Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils. Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils, vol. 2, pp. 939-944, 5th International Conference on Unsaturated Soils, Barcelona, Spain, 6/09/10.

Modelling the unsaturated behaviour of structured soils. / Rouainia, M.; Pereira, J. M.
Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils. 2011. p. 939-944 (Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Modelling the unsaturated behaviour of structured soils

AU - Rouainia, M.

AU - Pereira, J. M.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - The mechanical behaviour of natural clays is significantly affected by their in situ or initial structure in the form of cementation or interparticle bonding. This behaviour can differ substantially from the behaviour of reconstituted clays. In this paper, a constitutive model that combines unsaturated and structured behaviour is proposed. The model is capable of accounting for the phenomenon of volumetric collapse upon wetting and the stiffening effect that suction has on the soil skeletal response. Illustrative numerical results for isotropic consolidated tests on both on saturated and unsaturated compressed samples of Sao Paolo soil demonstrate the potential of the proposed model.

AB - The mechanical behaviour of natural clays is significantly affected by their in situ or initial structure in the form of cementation or interparticle bonding. This behaviour can differ substantially from the behaviour of reconstituted clays. In this paper, a constitutive model that combines unsaturated and structured behaviour is proposed. The model is capable of accounting for the phenomenon of volumetric collapse upon wetting and the stiffening effect that suction has on the soil skeletal response. Illustrative numerical results for isotropic consolidated tests on both on saturated and unsaturated compressed samples of Sao Paolo soil demonstrate the potential of the proposed model.

UR - https://www.scopus.com/pages/publications/84859940734

M3 - Conference contribution

AN - SCOPUS:84859940734

SN - 9780415604307

T3 - Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils

SP - 939

EP - 944

BT - Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils

T2 - 5th International Conference on Unsaturated Soils

Y2 - 6 September 2010 through 8 September 2010

ER -

Modelling the unsaturated behaviour of structured soils

Abstract

Publication series

Conference

Other files and links

Fingerprint

Cite this