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Abstract
This paper presents the analysis of results of deformations produced when using two stress paths with or without the generation of the collapse in some sandy and silty saturated and unsaturated soils. For that objective, the oedometer conventional and particularly, another that allows the suction control for deformational unsaturated soils studies were necessary to use. The results showed the influence of the saturation degree in the deformation of unsaturated soils and principally, in the collapsible soil behavior. In the practice, those mechanical processes could cause, undesired effects if there were not considered in the projects.
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