Exploració per tema "Tunnel lining"

Ara es mostren els items 1-18 de 18

    • An undrained upper bound solution for the face stability of tunnels reinforced by micropiles 

      Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Tunnel in difficult soils may require procedures to prevent tunnel face failures. Face stabilization can be achieved by the installation of some structural elements. This paper presents an analysis of face stability of ...

    • Assessment of the bearing capacity reduction of FRC elements subjected to fire 

      Muñoz Carpio, Jean; Serafini, Ramoel; Rambo, Dimas; Fuente Antequera, Albert de la; Domingues de Figueiredo, Antonio (International Federation for Structural Concrete (fib), 2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The use of Fibre Reinforced Concrete (FRC) in structural applications with higher responsibility (e.g., TBM-bored tunnels; bridges; offices and residential structural elements) is increasing. In this regard, the residual ...

    • Assessment of the post-fire residual bearing capacity of FRC and hybrid RC-FRC tunnel sections considering thermal spalling 

      Serafini, Ramoel; Fuente Antequera, Albert de la; Domingues de Figueiredo, Antonio (2021-12-01)
      Article
      Accés obert
      A design-oriented numerical model for the analysis of RC, FRC, and RC-FRC tunnel sections exposed to fire with different spalling parameters is presented. The numerical model is conceived in two steps: the first is the ...

    • Avances en el diseño de anillos prefabricados de concreto para el revestimiento de túneles con TBM 

      Arnau Delgado, Oriol; Fuente Antequera, Albert de la (Asociación Mexicana de Ingeniería de Túneles y Obras Subterráneas (AMITOS), 2019-01)
      Article
      Accés restringit per política de l'editorial
      El uso de máquinas tuneladoras (TBMs) para la construcción de túneles se ha incrementado significativamente durante los últimos años como resultado de las ventajas que presenta para ciertas longitudes y condiciones del ...

    • Caracterização de segmentos de túneis fabricados com concreto reforçado com fibras 

      Galobardes Reyes, Isaac; Fuente Antequera, Albert de la; Domingues de Figueiredo, Antonio; Peixoto, Marco Aurelio (2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A construção de túneis tem grande importância em cidades superpopulosas como é o caso de São Paulo, devido às suas grandes demandas de infraestrutura. Neste sentido, o sistema de escavação mecanizada (TBM) é uma alternativa ...

    • Comportamiento resistente de revestimientos de túnel de anillos de dovelas prefabricadas de hormigón 

      Arnau Delgado, Oriol; Molins i Borrell, Climent (2013)
      Article
      Accés obert
      Este artículo presenta los resultados de una investigación llevada a cabo en el ámbito de la respuesta resistente de los revestimientos de túneles a base de anillos de dovelas prefabricadas de hormigón. La investigación ...

    • Damage investigation of a tunnel subjected to an unplanned surface load through non-linear analysis 

      Arnau Lloveras, Oriol; Molins i Borrell, Climent; Marí Bernat, Antonio Ricardo (2017-08)
      Article
      Accés obert
      A description of the deformations and damage that occurred in a segmental tunnel lining as a consequence of an unplanned surface load is presented, as well as the numerical analyses performed for its safety assessment. The ...

    • Design-oriented assessment of the residual post-fire bearing capacity of precast fiber reinforced concrete tunnel linings 

      Serafini, Ramoel; Dantas, Sèrgio R.A; Rodríguez Agra, Ronney; Fuente Antequera, Albert de la; Berto, Antonio F.; Domingues de Figueiredo, Antonio (2022-01)
      Article
      Accés obert
      This study presents a meso-scale experimental program and employs a numerical approach to determine the bearing capacity of steel fiber reinforced concretes (SFRC) tunnel linings after fire exposure. First, the effect of ...

    • Diseño geométrico de revestimientos prefabricados de hormigón armado para túneles ejecutados con TBM 

      Ainchil Lavín, Javier Pablo; Ramos Schneider, Gonzalo; Fuente Antequera, Albert de la (2022)
      Comunicació de congrés
      Accés obert
      La ejecución de túneles con T.B.M. y revestimientos de dovelas prefabricadas de hormigón armado se ha convertido en una solución frecuente en áreas urbanas, válida para una amplia gama de entornos geotécnicos. En esta ...

    • Diseño óptimo de dovelas de hormigón reforzado con fibras para el revestimiento de túneles 

      Fuente Antequera, Albert de la; Blanco Álvarez, Ana; Pujadas Álvarez, Pablo; Aguado de Cea, Antonio (2015)
      Article
      Accés obert
      El uso del hormigón reforzado con fibras (HRF) para la fabricación de dovelas de túneles es una práctica en aumento. Sin embargo, aún existe cierta inercia al cambio respecto a la solución tradicional de hormigón armado ...

    • Dovelas innovadoras de alta durabilidad reforzadas sólo con fibras no metálicas 

      Navarro, Paz; Sánchez, María; Martín, Elena; Segura Pérez, Ignacio; Cruz Romero, Janill Marie de la; Fuente Antequera, Albert de la (2019-09)
      Article
      Accés obert
      Los anillos de dovelas prefabricadas de HRF son un revestimiento habitual en túneles excavados con tuneladora. DRAGADOS-gGRAVITY Engineering-UPC han querido ir un paso más allá estudiando el comportamiento de dovelas ...

    • Effect of soil saturation changes on pressure on tunnel linings 

      de Santos, C.; Ledesma Villalba, Alberto; Lloret Morancho, Antonio (IOS Press, 2009)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      It is well known that changes in soil degree of saturation have an important influence on mechanical soil properties. Decreasing suction in soil leads to an increase of specific weight and to a decrease of stiffness and ...

    • Longitudinal time-dependent response of segmental tunnel linings 

      Arnau Delgado, Oriol; Molins i Borrell, Climent; Blom, C.B.M.; Walraven, Joost C. (2012-03)
      Article
      Accés obert
      The longitudinal forces introduced by tunnel boring machines (TBMs) to the segmental tunnel linings influence their structural response. The analyses of the linings construction process and the ground-structure interaction ...

    • Propuesta de método de optimización de refuerzo de segmentos de túneles fabricados con hormigón reforzado con fibras 

      Fuente Antequera, Albert de la; Galobardes Reyes, Isaac; Domingues de Figueiredo, Antonio; Peixoto, Marco Aurelio (2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The construction of underground lines has a big importance in overpopulated cities such as São Paulo. In that sense, the tunnel boring machine (TBM) method for tunnel construction is a method that allows a high speed of ...

    • Safety format for the flexural design of tunnel fibre reinforced concrete precast segmental linings 

      Cugat Martí, Víctor; Pialarissi Cavalaro, Sergio Henrique; Bairán García, Jesús Miguel; Fuente Antequera, Albert de la (Elsevier, 2020-09)
      Article
      Accés obert
      Fibre reinforced concrete (FRC) is increasingly used in tunnel segmental linings constructed with tunnel boring machines. Several codes include the FRC as a structural material and specific guidelines cover the design of ...

    • Strain-monitoring of a concrete tunnel lining with distributed optical fiber sensors 

      Gómez i Esteve, Judit; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (International Society for Structural Health Monitoring of Intelligent Infrastructure (ISHMII), 2021)
      Text en actes de congrés
      Accés obert
      Despite their advantageous performance and reliability, distributed optical fiber sensors (DOFS) still constitute a recent technology and their reliability and accuracy when applied to real world structures is still under ...

    • Theoretical and numerical analysis of the three-dimensional response of segmental tunnel linings subjected to localized loads 

      Arnau Delgado, Oriol; Molins i Borrell, Climent (2015-06)
      Article
      Accés obert
      Segmental tunnel linings present a significant 3D response when they are subjected to localized loads or to other scenarios that produce different deformations of adjacent rings. The present paper analyzes the interaction ...

    • Three dimensional structural response of segmental tunnel linings 

      Arnau Delgado, Oriol; Molins i Borrell, Climent (2012-11)
      Article
      Accés obert
      The particular configuration of segmental tunnel linings produces that its structural response in front of usual design loads could present a significant three dimensionality due to the structural interaction between ...