Modeling field load tests in lateritic unsaturated soil

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Data

2014

Autores

Rodrigues, R. A. [UNESP]
Georgetti, G. B.
Vilar, O. M.

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CRC Press -Taylor & Francis Group

Resumo

Many models for unsaturated soil have been developed in the last years, accompanying the development of experimental techniques to deal with such soils. The benchmark of the models for unsaturated soil can be assigned to the Barcelona Basic Model (BBM) now incorporated in some codes such as the CODEBRIGHT. Most of those models were validated considering limited laboratory test results and not much validation is available considering real field problems. This paper presents modeling results of field plate load tests performed under known suction on a lateritic unsaturated soil. The required input data were taken from laboratory tests performed under suction control. The modeling nicely reproduces field tests allowing appreciating the influence of soil suction on the stress-settlement curve. In addition, wetting induced or collapse settlements were calculated from field tests and were nicely duplicated by the numerical analysis performed. © 2014 Taylor & Francis Group.

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Unsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014, v. 2, p. 1495-1500.
Unsaturated Soils: Research & applications, Vols 1 And 2. Boca Raton: Crc Press-taylor &francis Group, p. 1495-1500, 2014.