Wear and abrasivity: observations from EPB drives in mixed soft – rock sections

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.contributor	Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.contributor.author	González Paez, Claudia
dc.contributor.author	Arroyo Alvarez de Toledo, Marcos
dc.contributor.author	Gens Solé, Antonio
dc.date	2015-06
dc.identifier.citation	González, C., Arroyo, M., Gens, A. Wear and abrasivity: observations from EPB drives in mixed soft – rock sections. "Geomechanics and Tunnelling", Juny 2015, vol. 8, núm. 3, p. 258-264.
dc.identifier.citation	1865-7389
dc.identifier.citation	10.1002/geot.201500007
dc.identifier.uri	http://hdl.handle.net/2117/83336
dc.language.iso	eng
dc.relation	http://onlinelibrary.wiley.com/doi/10.1002/geot.201500007/abstract
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Túnels i excavacions
dc.subject	Boring machinery
dc.subject	Tunnels--Spain--Barcelona
dc.subject	wear
dc.subject	heterogeneous media
dc.subject	tool service life
dc.subject	Túnels -- Maquinària
dc.subject	Túnels -- Catalunya -- Barcelona
dc.title	Wear and abrasivity: observations from EPB drives in mixed soft – rock sections
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	This paper summarizes the main observations related to geotechnical properties and tool changes that characterize the different tunnel drives in a database of 33 km of EPB tunnel records from the Barcelona area. The data have been examined in detail with regard to cutting tool replacement and performance of the mechanized excavation. The database includes tunnels in soft soils, in hard and medium rocks and in mixed soil-rock conditions; tool changing records and geotechnical properties. Transverse and longitudinal geotechnical heterogeneity are accounted for systematically. Longitudinal heterogeneity is used to subdivide the drives in the database into homogeneous units. Transverse (within section) heterogeneity is described by a set of newly developed impact factors FI.
dc.description.abstract	Peer Reviewed

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