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

Akbay D., Altindag R.

JOURNAL OF THE SOUTHERN AFRICAN INSTITUTE OF MINING AND METALLURGY, vol.120, no.3, pp.181-190, 2020 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 120 Issue: 3
  • Publication Date: 2020
  • Doi Number: 10.17159/2411-9717/759/2020
  • Journal Name: JOURNAL OF THE SOUTHERN AFRICAN INSTITUTE OF MINING AND METALLURGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, Metadex, Directory of Open Access Journals, Civil Engineering Abstracts
  • Page Numbers: pp.181-190
  • Keywords: point load index, rock mass classification, measurement error, testing device, STRENGTH, EXCAVATABILITY
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

In 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.