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Dovelas de hormigón (concreto) reforzado con fibras para el soporte de túneles y pozos verticales

Authors: Fuente Antequera, Albert de la; Pujadas Álvarez, Pablo; Blanco Álvarez, Ana; Aguado de Cea, Antonio;

Dovelas de hormigón (concreto) reforzado con fibras para el soporte de túneles y pozos verticales

Abstract

El empleo del hormigón reforzado con fibras (HRF) para dovelas de anillos de revestimiento de túneles es ya una práctica habitual a nivel nacional e internacional. En este sentido, las ventajas técnicas a las que conduce su uso (control del ancho de fisura, tenacidad frente a impacto y cargas concentradas, entre otras) son también conocidas. Asimismo, a nivel económico su uso puede ser atractivo si se hace un análisis integral considerando el proceso de producción y mantenimiento de la dovela, y no sólo la comparación del coste (costo) de la fibra y el de la armadura. Aún existe inercia al empleo del HRF como alternativa al refuerzo clásico; pues su contribución estructural raramente se ha considerado. Por una parte, debido a que hasta el año 2008 no aprobó la EHE – 08, cuyo anexo 14 aborda aspectos de diseño y control de HRF; y, por otra, a la falta de criterios para considerar aspectos como la orientación y distribución de las fibras.

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Spain
Keywords

Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó, Tunnels--Design and construction, Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Túnels i excavacions, :Enginyeria civil::Materials i estructures::Materials i estructures de formigó [Àrees temàtiques de la UPC], Túnels -- Disseny i construcció, :Enginyeria civil::Geotècnia::Túnels i excavacions [Àrees temàtiques de la UPC]

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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