Reliability and evaluation of point load index values obtained from different testing devices

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dc.authoridAkbay, Deniz/0000-0002-7794-5278
dc.contributor.authorAkbay, D.
dc.contributor.authorAltindag, R.
dc.date.accessioned2025-01-27T21:00:13Z
dc.date.available2025-01-27T21:00:13Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn some rock mass classification methods, the point load index (PLI) value is used as a parameter in the determination of the class of rock mass. The PLI value may be used as a design parameter such as uniaxial compressive strength (UCS) and tensile strength (TS), owing to its being simpler, faster, and cheaper and easier to prepare than the specimens for UCS and TS tests. It can also be carried out in both the field and the laboratory. Many researchers have investigated PLI testing and the effect of different loading configurations, sample size, and size correction factors. Within the scope of this study, PLI tests were performed in 15 different point load index testing devices. The experiments were carried out on seven different rock types (three sedimentary, one metamorphic, three magmatic) by the same operator. The errors of the testing devices were investigated based on the experimental results, and a device was modified to avoid the errors identified. Additional experiments were carried out in the modified testing device to acquire more realistic values. The PLI values obtained from the modified device were found to be more reliable, with standard deviations lower than those obtained from other conventional testing devices.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [116R070]; Suleyman Demirel University OYP Coordination Unit Project [OYP-05286-DR-13]
dc.description.sponsorshipThis study was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) Project 116R070 and Suleyman Demirel University OYP Coordination Unit Project OYP-05286-DR-13. The authors would like to thank TUBITAK and SDU OYP Project Coordination Unit.
dc.identifier.doi10.17159/2411-9717/759/2020
dc.identifier.endpage190
dc.identifier.issn2225-6253
dc.identifier.issn2411-9717
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85091524662
dc.identifier.scopusqualityQ3
dc.identifier.startpage181
dc.identifier.urihttps://doi.org/10.17159/2411-9717/759/2020
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26969
dc.identifier.volume120
dc.identifier.wosWOS:000535718100004
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSouthern African Inst Mining Metallurgy
dc.relation.ispartofJournal of The Southern African Institute of Mining and Metallurgy
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectpoint load index
dc.subjectrock mass classification
dc.subjectmeasurement error
dc.subjecttesting device
dc.titleReliability and evaluation of point load index values obtained from different testing devices
dc.typeArticle

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