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Soil-geosynthetic interaction. Interface parameters in granular soils

Title
Soil-geosynthetic interaction. Interface parameters in granular soils
Type
Article in International Conference Proceedings Book
Year
2014
Authors
Micaela Oliveira
(Author)
Other
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Agostinho Mendonça
(Author)
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M. Lurdes Lopes
(Author)
FEUP
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Conference proceedings International
Pages: 1-10
10th International Conference on Geosynthetics
Berlin, Germany , 21-25 September 2014
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Publicação em ISI Web of Knowledge ISI Web of Knowledge
Publicação em Scopus Scopus - 0 Citations
Scientific classification
FOS: Engineering and technology
CORDIS: Technological sciences
Other information
Authenticus ID: P-00G-1M5
Resumo (PT): O comportamento da interface solo/geossintético tem vindo a ser estudada, desde 1995, por um grupo de investigadores da Faculdade de Engenharia da Universidade do Porto. Para o efeito foram realizados ensaios de arranque, de corte direto e de corte em plano inclinado utilizando diferentes tipos de geossintéticos, nomeadamente geotêxteis, geogrelhas e geomembranas confinados em solos granulares. Será apresentado um tratamento global dos resultados obtidos com geogrelhas ensaiadas ao arranque, com o objetivo de obter correlações entre o coeficiente de resistência da interface, f, e as condições de aplicação de diferentes tipos de geogrelhas e solos. O tratamento estatístico das diferentes correlações permitiu obter uma equação geral entre o coeficiente de resistência da interface, f, e a tensão de confinamento, a granulometria e compacidade do solo e a estrutura das geogrelhas, que é o objetivo principal do presente estudo.
Abstract (EN): Intensive researches on soil/ geosynthetic interface behaviour have been developed, since 1995, by a research group of the University of Porto (Portugal). In this research soil /geosynthetic interface behaviour was characterized by performing pullout, direct shear and inclined shear tests with different types of geosynthetics, namely, geotextiles, geogrids and geomembranes, confined by granular soils. An overall treatment of the research collected data from geogrids pullout tests will be presented, in order to define significant correlations between the interface coefficient, f, and the application conditions of different types of geogrids and confining materials. By applying statistical analysis to the different correlations it was possible to obtain a general equation for soil compaction conditions, confining stress and interface resistance coefficient, f, which is the corollary of the present research.
Language: Portuguese
Type (Professor's evaluation): Scientific
Contact: lcosta@fe.up.pt
No. of pages: 10
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