INTERDEPENDENCE BETWEEN POINT LOAD INDEX, COMPRESSIVE STRENGTH AND CRUSHING RESISTANCE OF JORDAN OIL SHALE AND RELATION TO CALORIFIC VALUE

Rock parameters are important to be considered in mine design. Physical-mechanical tests were carried out on oil shale and dolostone samples from the Attarat Um Ghudran oil shale area in central Jordan, in order to determine the rock mass properties. It was necessary for assessing the feasibility of...

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Published inOil shale (Tallinn, Estonia : 1984) Vol. 32; no. 3; p. 252
Main Authors Vaizene, Vivika, Valgma, Ingo, Reinsalu, Enno, Pastarus, Juri-rivaldo, Kaisla, Erkki
Format Journal Article
LanguageEnglish
Published Tallinn Estonian Academy Publishers 01.01.2015
Teaduste Akadeemia Kirjastus (Estonian Academy Publishers)
Subjects
Compressive strength
Conversion
Drying oils
Excavation
Load
Load tests
Mathematical analysis
Mechanical properties
Mining
Observations
Oil shale
Oil-shales
Rock
Strength of materials
Jordan
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Summary:Rock parameters are important to be considered in mine design. Physical-mechanical tests were carried out on oil shale and dolostone samples from the Attarat Um Ghudran oil shale area in central Jordan, in order to determine the rock mass properties. It was necessary for assessing the feasibility of excavation and processing. Half-core and core samples were compressed up to failure during the Point Load Test (PLT) and Uniaxial Compressive Strength Test (UCST), respectively, and the PLT index (PLTI) and compressive strength were calculated. A conversion factor between PLTI and UCS for Jordan oil shale and dolostone was determined. The Crushing Resistance Test (CRT) on samples was conducted. Taking into consideration confidence limits, the recommended conversion factor 1 for Attarat oil shale and dolostone is respectively 14 and 12 and the recommended conversion factor 2 is 33 and 12, respectively. This knowledge is relevant in designing selective excavation and dry separation of oil shale.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0208-189X
1736-7492
DOI:10.3176/oil.2015.3.05