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 ....
PDF Correlation between uniaxial strength and point load , Uniaxial Compressive Strength UCS is one of the most important properties of rocks Point Load Test PLT is practically used in geotechnical engineering to determine rock strength ....
Correlations between uniaxial Compressive strength and point load strength for some brazilian , strength PLS , called the strength conversion factor k , has been used to estimate the UCS from the PLS since the 1960s Many researchers , for UCS and axial PLT ,...
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The focus of this paper is to present the data analysis used to correlate the point load test index Is50 with the uniaxial compressive strength UCS , and to propose appropriate Is50 to UCS conversion factors for different coal measure rocks...
In this study, correlation between the UCS and the point load strength index of limestone of Imgye area was analyzed, and the linear regression equation obtained from regression analysis of ,...
For these reasons, the PLT is a more practical, time-saving, and economical method compared to the uniaxial compressive strength UCS test The PLT is based on breaking a rock specimen, which is subjected to an increasingly concentrated point load applied through a pair of conical platens 2...
INTERDEPENDENCE BETWEEN POINT LOAD INDEX, COMPRESSIVE STRENGTH AND CRUSHING , and compressive strength were calculated A conversion factor between PLTI and UCS for Jordan oil shale and dolostone was determined , Interdependence between Point Load Index, Compressive Strength and Crushing Resistance....
UCS tests provide an estimate of the true UCS of the rock 1995 Location Number of tests Conversion Factor Western Canada 1975 Sandstone Rusnak The ,...
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Sonmez and Tunusluoglu indicated that prediction of UCS from BPI by a unique conversion factor could lead to erroneous results If BPI indices of two different rock types are same, a unique conversion factor would result in equal UCS values for both rocks which might be erroneous...
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Correlation Between Point Load Index And Very Low Uniaxial Compressive Strength , mean UCS/mean PLT increases factor increased linearly as the k the equation, , which is a new derived equation easily can be and must be the used , UCS conversion factors for different Iraqi rocks The rock strength determined by PLT , like the load frame ....
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Conversion of Point Load Test Results to Conventional Strength Tests for Shale, Claystone and Limestone Rocks Abdolreza Osouli1, Behrooz Moradi Bajestani2 , Iman Shafii3 1- Assistant Professor, Civil Engineering Department, Southern Illinois University of Edwardsville, Edwardsville, IL, ,...
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plt conversion factor ucs for line grinding mill equipment 4 Likelihood ratio confidence bounds and PLT specimens were transformed to UCS strengths with conversion factorGamma 4 LIKELIHOOD RATIO CONFIDENCE , unconfined compressive strength dolomitic limestone...
Average weighted conversion factors calculated by rock type Average conversion factor Oil shale Dolostone UCS/PLTI normal 118 139 UCS/PLTI parallel ,...
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The point-load test PLT has been widely used in the field and in the laboratory to estimate the strength of rock materials The PLT is easy and quick to perform and it is suitable for samples with irregular shapes and therefore has found wide applications The measured point-load strength PLS is considered as a strength index and it has been correlated to the rock compressive strength...
wall have an average conversion factor from PLS to UCS of 2461 The mean conversion factor from PLS of blocky frag-ments to UCS of limestone in the present study is 4038 Keywords Pointloadtest TBMmuck Blockyfragments , the PLT can be performed on a wide range of rock samples....
The conversion factors between UCS and PLA proposed in this paper are 21 for shale and 202 for limestone These values are more in agreement wi th the ones...
USING THE POINT LOAD TEST TO DETERMINE THE UNIAXIAL COMPRESSIVE STRENGTH OF COAL MEASURE ROCK John Rusnak, Director of Geology Peabody Group St Louis, MO Christopher Mark, Rock Mechanics Team Leader National Institute for Occupational Safety and Health Pittsburgh, PA ABSTRACT is sufficient...
Various studies in the literature propose relationships between I s50 from point load test and UCS, thus objective of this study is to determine conversion factors relating I s50 and UCS for intact sedimentary rocks, as well as for conglomerates and breccias, since to those rocks, specimen with geometric characteristics for the USC test ....
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The index-to-strength conversion factor k relating UCS to Is 50 was reported to depend on the compressive to tensile strength ratio So errors up to 100 should be expected if an arbitrary ratio value is chosen to predict compressive strength from point load tests...
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