Bimodal soil-water retention curve and k-function model using linear superposition

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

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	Costa, Mateus Bezerra Alves da Costa	-
dc.contributor.author	Cavalcante, André Luís Brasil	-
dc.date.accessioned	2021-05-10T11:31:34Z	-
dc.date.available	2021-05-10T11:31:34Z	-
dc.date.issued	2021-05-06	-
dc.identifier.citation	COSTA, Mateus Bezerra Alves da Costa; CAVALCANTE, André Luís Brasil. Bimodal soil-water retention curve and k-function model using linear superposition. International Journal of Geomechanics, v. 21, n. 7, jul. 2021. DOI: https://doi.org/10.1061/(ASCE)GM.1943-5622.0002083.	pt_BR
dc.identifier.uri	https://repositorio.unb.br/handle/10482/40846	-
dc.language.iso	Inglês	pt_BR
dc.publisher	American Society of Civil Engineers	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Bimodal soil-water retention curve and k-function model using linear superposition	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	Função k	pt_BR
dc.subject.keyword	Superposição linear	pt_BR
dc.identifier.doi	https://doi.org/10.1061/(ASCE)GM.1943-5622.0002083	pt_BR
dc.relation.publisherversion	https://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GM.1943-5622.0002083	pt_BR
dc.description.abstract1	Progress in the study of unsaturated soils and their application in practical geotechnics could be partially attributed to the advancement of their modeling and computational technologies. The soil–water retention curve (SWRC) and k-function are fundamental hydraulic properties of unsaturated soil that are important in the analysis of soil states. This study presents a new model to represent the hydraulic properties (SWRC and k-function) of bimodal soils using linear curve superposition. The resulting SWRC model was validated for common bimodal soils, and the k-function was then obtained. The relationship between the model and soil porosimetry was also deduced, leading to a better understanding of the physical influence of the model's parameters. In addition, based on the model, a solution was proposed to simulate the soil infiltration process involving partial differential equations and numerical methods. The model's efficiency in representing bimodal soils was proven, and the results from subsequent analyses confirmed its physical consistency. Therefore, the proposed model could address problems in real-world geotechnical practices.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0003-4980-1450	pt_BR
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