Novel approach to determine soil–water retention surface

Costa, Mateus Bezerra Alves da; Cavalcante, André Luís Brasil

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Campo DC	Valor	Idioma
dc.contributor.author	Costa, Mateus Bezerra Alves da	-
dc.contributor.author	Cavalcante, André Luís Brasil	-
dc.date.accessioned	2020-10-20T16:27:03Z	-
dc.date.available	2020-10-20T16:27:03Z	-
dc.date.issued	2020-06	-
dc.identifier.citation	COSTA, Mateus Bezerra Alves da; CAVALCANTE, André Luís Brasil. Novel approach to Determine Soil-Water Retention Surface. International Journal of Geomechanics, v. 20, n. 6, 04020054, jun. 2020. Disponível em: https://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GM.1943-5622.0001684.	pt_BR
dc.identifier.uri	https://repositorio.unb.br/handle/10482/39563	-
dc.language.iso	Inglês	pt_BR
dc.publisher	American Society of Civil Engineers	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Novel approach to determine soil–water retention surface	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Solos - análise	pt_BR
dc.subject.keyword	Retenção de água no solo	pt_BR
dc.subject.keyword	Solos - propriedades hidráulicas	pt_BR
dc.relation.publisherversion	https://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GM.1943-5622.0001684	pt_BR
dc.description.abstract1	Models have been developed to represent soils, thereby establishing the unsaturated soil theory. Accurate models include physical deductions based on soil properties. The soil–water retention surface (SWRS) represents the general soil–water retention curve (SWRC), considering the void ratio changes. This study presents a novel model that describes the surface physical behavior. The proposed model demonstrated physical consistency and dependence between the soil hydraulic properties and the void ratio. Additionally, sensitivity analyses were performed to verify the influence of soil parameters on the hydraulic behavior. Literature data of SWRCs at different void ratios were used to generate a 3D surface model by fitting the data points. A continuum SWRS of the specified soil was plotted, soil parameters were calculated, and SWRCs at different void ratios were analyzed. The mathematical relationship between the air-entry value of the soil and its void ratio was also defined. By modeling and validating literature experiments, the proposed model demonstrated the ability to accurately represent hydraulic properties of soils without excessive deformation due to suction increase.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0003-4980-1450	pt_BR
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