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ALONSO, E. E.; JOSA, A.; GENS, A. Modelling the behavior of compacted soils upon wetting. In: ENCONTRO SOBRE SOLOS NÃO SATURADOS, 1995, Porto Alegre. Anais... Porto Alegre: UFRGS, 1995. p. 1-17.
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Dados do autor na base InfoHab:
Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
Citações: Nenhuma citação encontrada
Índice h: Indice h não calculado  
Co-autores: Nenhum co-autor encontrado

Abstract

The behaviour of compacted, soils upon wetting. as revealed by laboratory tests. has been reviewed In the paper In order to highlight the main controlling factor. Relevant features of a general framework for the behaviour of unsaturated soils has also been Introduced as a basis for the subsequent presentation. Two basic characteristics of the framework are the Independent consideration of total net stress and negative pore water pressure and the use of the theory of hardening plasticity as a general reference. Two comprehensive experimental programs, on, compacted soils have been selected to Illustrate the, capabilities of the models developed. In addition, an effort has been made to relate basic compaction variables to model parameters. The analysis has revealed that a number of experimental observations and trends are consistently reproduced by the models. Examples are the negligible influence of stress ratio on collapse volumetric deformation and the effect of alternative stress paths on volumetric expansion. Comparisons between experimental results and model predictions has led to a preliminary formulation of a simplified framework for compacted soil behaviour when the Initial soil microstructure Is adequately represented by Its void ratio. In this case model parameters represent soil type and compaction method whereas the-dry density and moduling water content are adequately described by the Initial preconsolidation stress and the water suction.
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