Prediction of the penetration rate of rotary blast hole drills using a new drillability index

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dc.contributor.authorKahraman S.
dc.contributor.authorBalci C.
dc.contributor.authorYazici S.
dc.contributor.authorBilgin N.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2000
dc.departmentNiğde ÖHÜ
dc.description.abstractRotary blast hole drills were observed in several formations at different open pit mines and quarries. Rock samples were collected as near as possible to drilling locations and mechanical and physical properties of the total 22 rock samples were determined. Indentation tests were carried out on the block samples from the same formations. A new drillability index for the prediction of the penetration rates of rotary blast hole drills and the mechanical and physical properties of the rock formations was defined from force-indentation curves of indentation tests. A penetration rate model for rotary for blast hole drills was developed using this drillability index. It was seen that the model was valid for the formations having uniaxial compressive strength over 40 MPa and especially for carbonaceous rocks. The drillability index exhibits a significant correlation with the proportionality constant k defined in the model. It is also seen that significant correlations exist between the drillability index and rock properties suggesting that the proposed model may be used universally to estimate the penetration rate of rotary blast hole drills. (C) 2000 Elsevier Science Ltd. All rights reserved.
dc.identifier.doi10.1016/S1365-1609(00)00007-1
dc.identifier.endpage743
dc.identifier.issn0148-9062
dc.identifier.issue5
dc.identifier.scopus2-s2.0-0033927928
dc.identifier.scopusqualityN/A
dc.identifier.startpage729
dc.identifier.urihttps://dx.doi.org/10.1016/S1365-1609(00)00007-1
dc.identifier.urihttps://hdl.handle.net/11480/1400
dc.identifier.volume37
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.relation.ispartofInternational Journal of Rock Mechanics and Mining Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titlePrediction of the penetration rate of rotary blast hole drills using a new drillability index
dc.typeArticle

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