Performance prediction of roadheaders in metallic ore excavation

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dc.authorid0000-0001-7903-143X
dc.authorid0000-0001-7392-6275
dc.contributor.authorComakli, Ramazan
dc.contributor.authorKahraman, Sair
dc.contributor.authorBalci, Cemal
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2014
dc.departmentNiğde ÖHÜ
dc.description.abstractUsing mechanical miners such as roadheaders may be a solution to increase the production rate and to decrease the costs in metallic mines. In this study, the performance prediction and cutter consumption of roadheaders were investigated for the eight different ore types. Small-scale linear cutting tests, Cerchar abrasivity tests and physico-mechanical tests were carried out on the ore samples collected from the site. The instantaneous cutting rates of a selected roadheader were calculated using specific energy (SE) values and compared to the previous models. The amount of cutter consumption was also calculated for each ore type and it was seen that the estimated cutter consumption values for the tested ores are generally lower than the proposed economical upper limit. Since only the performance prediction and cutter consumption of roadheaders were investigated for the excavation of ores in the current study, analyzing all mining operations is necessary for the adaptation of roadheader excavation to a mine. Simple and multiple regression models were also derived for the estimation of SE from the ore properties. A significant practical model including the Schmidt hammer value and density of ores was produced from the multiple regression analysis. This regression model can be reliably used for the estimation of SE especially for the preliminary studies. (C) 2013 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific Research Project Unit of Nigde University [FEB 2009/04]; Alexander von Humboldt Foundation
dc.description.sponsorshipThis study has been supported by the Scientific Research Project Unit of Nigde University, under the project number FEB 2009/04. The automatic cutting machine used in the sample preparation was financed by Alexander von Humboldt Foundation. Authors thank to Professor Nuh Bilgin and his colleagues from Istanbul Technical University for their support on performing of the linear cutting tests.
dc.identifier.doi10.1016/j.tust.2013.09.009
dc.identifier.endpage45
dc.identifier.issn0886-7798
dc.identifier.scopus2-s2.0-84885914035
dc.identifier.scopusqualityQ1
dc.identifier.startpage38
dc.identifier.urihttps://dx.doi.org/10.1016/j.tust.2013.09.009
dc.identifier.urihttps://hdl.handle.net/11480/4204
dc.identifier.volume40
dc.identifier.wosWOS:000330150700004
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartofTUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectRoadheaders
dc.subjectPerformance prediction
dc.subjectSpecific energy
dc.subjectMetallic ores
dc.subjectPhysico-mechanical properties
dc.titlePerformance prediction of roadheaders in metallic ore excavation
dc.typeArticle

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