Tunnels with rough walls and cavities

Often the finishing surfaces of road tunnels (both gables and vaults) present not only important uniform roughness, but even holes that can be numerous and with significant size: usually in uncoated tunnel is where most uniform and major irregularities can be found whilst in rock tunnels excavated w...

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Tipo de recurso:: http://purl.org/coar/resource_type/c_6570

Fecha de publicación:: 2014

Institución:: Universidad Pedagógica y Tecnológica de Colombia

Repositorio:: RiUPTC: Repositorio Institucional UPTC

Idioma:: spa

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network_acronym_str	REPOUPTC2
network_name_str	RiUPTC: Repositorio Institucional UPTC
repository_id_str
spelling	2014-12-202024-07-05T18:47:50Z2024-07-05T18:47:50Zhttps://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/393910.19053/1900771X.3939https://repositorio.uptc.edu.co/handle/001/12238Often the finishing surfaces of road tunnels (both gables and vaults) present not only important uniform roughness, but even holes that can be numerous and with significant size: usually in uncoated tunnel is where most uniform and major irregularities can be found whilst in rock tunnels excavated with blasting is where most holes can be found. This results in frictions coefficients with the tunnel walls that can be very high. The friction generated by the airflow in the ventilation can result in very important aerodynamic thrust requirements (with ventilation through jet-fans), which imply significant power consumption. Pressure losses in rugous tunnels and with the presence of cavities are analyzed for road tunnels with longitudinal ventilation through jet-fans, evaluating the aerodynamic thrust required to counter the corresponding losses.En muchas ocasiones las superficies finales de los túneles de carretera (tanto los hastiales, como la bóveda) resultan no solo con rugosidades uniformes importantes, también con huecos más o menos numerosos y más o menos considerables: generalmente en túneles sin revestir es donde más se presentan las irregularidades uniformes importantes, y en túneles en roca excavados con voladuras es donde más se manifiestan los huecos. Esto da lugar a coeficientes de fricción con las paredes del túnel que pueden ser muy elevados. La fricción que se produce al paso del aire en la ventilación puede dar lugar a necesidades de empujes aerodinámicos (con ventilación con jet-fan) muy importantes, esto es, a consumos de energía eléctrica significativos. Para túneles de carretera con ventilación longitudinal con jet-fan se analizan las pérdidas de carga de túneles rugosos y con cavidades, y se evalúan los empujes aerodinámicos necesarios para contrarrestar las correspondientes pérdidas de carga.application/pdfspaspaUniversidad Pedagógica y Tecnológica de Colombia - UPTChttps://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/3939/3418Derechos de autor 2015 Ingeniería Investigación y Desarrollohttp://purl.org/coar/access_right/c_abf71http://purl.org/coar/access_right/c_abf2Ingeniería Investigación y Desarrollo; Vol. 15 No. 1: enero-junio de 2015; 58-69Ingeniería Investigación y Desarrollo; Vol. 15 Núm. 1: enero-junio de 2015; 58-692422-43241900-771Xtunnelsrugositycavities.túnelesrugosidadcavidadesTunnels with rough walls and cavitiesTúneles con paramentos rugosos y con cavidadesinfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6570http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a154http://purl.org/coar/version/c_970fb48d4fbd8a85Vigne, GabrieleJönsson, JimmyHacar, Fernando001/12238oai:repositorio.uptc.edu.co:001/122382025-07-18 11:25:29.482metadata.onlyhttps://repositorio.uptc.edu.coRepositorio Institucional UPTCrepositorio.uptc@uptc.edu.co
dc.title.en-US.fl_str_mv	Tunnels with rough walls and cavities
dc.title.es-ES.fl_str_mv	Túneles con paramentos rugosos y con cavidades
title	Tunnels with rough walls and cavities
spellingShingle	Tunnels with rough walls and cavities tunnels rugosity cavities. túneles rugosidad cavidades
title_short	Tunnels with rough walls and cavities
title_full	Tunnels with rough walls and cavities
title_fullStr	Tunnels with rough walls and cavities
title_full_unstemmed	Tunnels with rough walls and cavities
title_sort	Tunnels with rough walls and cavities
dc.subject.en-US.fl_str_mv	tunnels rugosity cavities.
topic	tunnels rugosity cavities. túneles rugosidad cavidades
dc.subject.es-ES.fl_str_mv	túneles rugosidad cavidades
description	Often the finishing surfaces of road tunnels (both gables and vaults) present not only important uniform roughness, but even holes that can be numerous and with significant size: usually in uncoated tunnel is where most uniform and major irregularities can be found whilst in rock tunnels excavated with blasting is where most holes can be found. This results in frictions coefficients with the tunnel walls that can be very high. The friction generated by the airflow in the ventilation can result in very important aerodynamic thrust requirements (with ventilation through jet-fans), which imply significant power consumption. Pressure losses in rugous tunnels and with the presence of cavities are analyzed for road tunnels with longitudinal ventilation through jet-fans, evaluating the aerodynamic thrust required to counter the corresponding losses.
publishDate	2014
dc.date.accessioned.none.fl_str_mv	2024-07-05T18:47:50Z
dc.date.available.none.fl_str_mv	2024-07-05T18:47:50Z
dc.date.none.fl_str_mv	2014-12-20
dc.type.none.fl_str_mv	info:eu-repo/semantics/article
dc.type.coar.fl_str_mv	http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.coarversion.fl_str_mv	http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.spa.fl_str_mv	http://purl.org/coar/resource_type/c_6570
dc.type.coarversion.spa.fl_str_mv	http://purl.org/coar/version/c_970fb48d4fbd8a154
format	http://purl.org/coar/resource_type/c_6570
dc.identifier.none.fl_str_mv	https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/3939 10.19053/1900771X.3939
dc.identifier.uri.none.fl_str_mv	https://repositorio.uptc.edu.co/handle/001/12238
url	https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/3939 https://repositorio.uptc.edu.co/handle/001/12238
identifier_str_mv	10.19053/1900771X.3939
dc.language.none.fl_str_mv	spa
dc.language.iso.none.fl_str_mv	spa
language	spa
dc.relation.none.fl_str_mv	https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/3939/3418
dc.rights.es-ES.fl_str_mv	Derechos de autor 2015 Ingeniería Investigación y Desarrollo
dc.rights.coar.fl_str_mv	http://purl.org/coar/access_right/c_abf2
dc.rights.coar.spa.fl_str_mv	http://purl.org/coar/access_right/c_abf71
rights_invalid_str_mv	Derechos de autor 2015 Ingeniería Investigación y Desarrollo http://purl.org/coar/access_right/c_abf71 http://purl.org/coar/access_right/c_abf2
dc.format.none.fl_str_mv	application/pdf
dc.publisher.es-ES.fl_str_mv	Universidad Pedagógica y Tecnológica de Colombia - UPTC
dc.source.en-US.fl_str_mv	Ingeniería Investigación y Desarrollo; Vol. 15 No. 1: enero-junio de 2015; 58-69
dc.source.es-ES.fl_str_mv	Ingeniería Investigación y Desarrollo; Vol. 15 Núm. 1: enero-junio de 2015; 58-69
dc.source.none.fl_str_mv	2422-4324 1900-771X
institution	Universidad Pedagógica y Tecnológica de Colombia
repository.name.fl_str_mv	Repositorio Institucional UPTC
repository.mail.fl_str_mv	repositorio.uptc@uptc.edu.co
_version_	1839633809054629888

Tunnels with rough walls and cavities

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