Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/24557
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dc.contributor.authorRodríguez, Ángel-
dc.contributor.authorNabulsi, Samir-
dc.contributor.authorRío, Olga-
dc.date.accessioned2010-05-21T08:20:58Z-
dc.date.available2010-05-21T08:20:58Z-
dc.date.issued2010-05-21T08:20:58Z-
dc.identifier.isbn978-3-931681-95-1-
dc.identifier.urihttp://hdl.handle.net/10261/24557-
dc.description.abstractIt is known from experience that when spraying concrete it spreads on the wall, being the distribution of concrete around the axis depending -at the remaining factors constant- on nozzle designo The shape of these "spreadings" have been analysed by different authors [1][2], who shown that a relation between the cross section of single layer strips of sprayed concrete and the spraying process parameters exist. However, no analytical mode1s of this relationship have been found in the literature [1]. The way concrete spreads on the wall can be modelled using a statistical approach by introducing a spraying density function. This [continuous] density function represents the probability of a differential volume of sprayed concrete landing on a differential area around certain coordinates. In this paper a semi-empirical model of the spraying process, based on a parametric family of such density functions is presented. This model allows the estimation of sprayed concrete thickness from operational data (concrete and compressed air flow, distance to wall, nozzle trajectory and actual thickness of sprayed concrete, etc.) The calibration of the main parameters of the model using experimental data is also presented.en_US
dc.format.extent1114629 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.relation.ispartofseriesEURO:TUN 2009en_US
dc.relation.ispartofseriesProcedings of the Second International Conferece on Computational Methods in Tunnellingen_US
dc.rightsopenAccessen_US
dc.subjectSprayed concreteen_US
dc.subjectlayer thicknessen_US
dc.subjectpumped volumeen_US
dc.subjectdensity functionen_US
dc.titleA Method for Estimating Thickness of Sprayed Concrete Layers from Pumped Volumeen_US
dc.typecapítulo de libroen_US
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionAedificatio Publishersen_US
dc.type.coarhttp://purl.org/coar/resource_type/c_3248es_ES
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.openairetypecapítulo de libro-
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