Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Maria Luísa Braga Farinha"'
Publikováno v:
Buildings, Vol 14, Iss 3, p 801 (2024)
To obtain predictions closer to concrete behaviour, it is necessary to employ a particle model (PM) that considers contact softening. A bilinear softening contact model (BL) has been adopted in PM studies. Several limitations in PM predictions have b
Externí odkaz:
https://doaj.org/article/5ea3a8d4381947cea86072ccf049ac01
Publikováno v:
Geotechnics, Vol 2, Iss 3, Pp 523-548 (2022)
Circular/spherical rigid particle models that were initially applied to rock fracture studies were not able to match the ratio of the compressive strength to tensile strength that occurs in rock. In addition, the predicted macroscopic friction angle
Externí odkaz:
https://doaj.org/article/8db3db13ddbd4b57b59a8591183d0a16
Autor:
Maria Luísa Braga Farinha, Nuno Monteiro Azevedo, Noemi Alejandra Schclar Leitão, João Rocha de Almeida, Sérgio Oliveira
Publikováno v:
Geotechnics, Vol 2, Iss 1, Pp 133-157 (2022)
Evaluation of the sliding stability of concrete dams requires the use of numerical tools not only able to simulate the coupled hydromechanical behavior but also able to adequately represent the foundation discontinuities and the specific features of
Externí odkaz:
https://doaj.org/article/5760dc71268549eabf0b0566c52b8b8a
Publikováno v:
Geotecnia, Iss 151 (2021)
Neste artigo apresenta-se a formulação e resultados da aplicação de dois modelos descontínuos tridimensionais que simulam a interação hidromecânica. Nestes modelos o comportamento mecânico é simulado de forma idêntica mas o comportamento h
Externí odkaz:
https://doaj.org/article/38bbe0a20d5441bdbaa4395db00313e8
Publikováno v:
Geotecnia, Iss 143 (2018)
Os modelos de partículas, ao terem em conta a estrutura granular da rocha, consideram de forma explícita a variabilidade associada ao material, razão pela qual têm sido aplicados com sucesso no estudo da fratura em rocha. Neste trabalho é aprese
Externí odkaz:
https://doaj.org/article/e460a7fa89ad413098c34313e63d013e
Os estudos que se apresentam enquadram-se no Projeto de Investigação do LNEC "DAMFA - Soluções de ponta para a avaliação sustentável das fundações de barragens de betão", que está a ser desenvolvido em parceria com a NOVA.ID.FCT - Associa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9bd7d3674510d236eb8aa3e584687cf
https://hdl.handle.net/10362/135149
https://hdl.handle.net/10362/135149
Safety Evaluation of an Arch-Gravity Dam Based on a Small Displacement Hydromechanical Coupled Model
Publikováno v:
Challenges and Innovations in Geomechanics ISBN: 9783030645175
CIÊNCIAVITAE
CIÊNCIAVITAE
In this work a small displacement finite element model for the coupled hydro-mechanical analysis of concrete dam foundations is adopted. The hydraulic behaviour is simulated assuming that seepage takes place along channels located at the edges of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41c368c8b78299fb0d2c254b8948b335
https://doi.org/10.1007/978-3-030-64518-2_34
https://doi.org/10.1007/978-3-030-64518-2_34
Autor:
Paula Branco Pinto, Maria Luísa Braga Farinha, M. Candeias, António José Roque, Cezar Augusto Burkert Bastos, Armando M. S. Nunes Antão, José V. Lemos, Antonio Marcos de Lima Alves, José Mateus dos Santos, Azucena Botello, Luís Lamas, Faiçal Massad, Carlos Oteo, Rafaela Cardoso, Margarida Espada, José Muralha, Nuno Monteiro Azevedo, Thaís Lucouvicz Dada
Publikováno v:
Geotecnia. :05-28
En el presente trabajo se presenta, de forma breve, la construcción de una pantalla vertical con micropilotes, ejecutada a fin de poder realizar una excavación de 20 m de altura para la edificación de un Hospital en Granada. Dicha pantalla fue ins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4318cfab6cb6dc51c885e0d4ce02866e
https://doi.org/10.24849/j.geot.2018.143.02
https://doi.org/10.24849/j.geot.2018.143.02
Publikováno v:
Rock Mechanics and Rock Engineering. 50:439-464
The explicit formulation of a small displacement model for the coupled hydro-mechanical analysis of concrete gravity dam foundations based on joint finite elements is presented. The proposed coupled model requires a thorough pre-processing stage in o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f675e01219e54f30ad06e82b05f1e9f
https://doi.org/10.1007/s00603-016-1125-7
https://doi.org/10.1007/s00603-016-1125-7
Publikováno v:
Geotecnia. :05-33
Apresenta-se a formulação explícita de um modelo hidromecânico em pequenos deslocamentos, baseado numa tecnologia de elementos finitos de junta. O modelo hidromecânico proposto requer um esquema de pré-processamento robusto, de modo a garantir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a3769e2e4bcc81e3cb9dc2ab9d4b1d7
https://doi.org/10.24849/j.geot.2015.133.02
https://doi.org/10.24849/j.geot.2015.133.02