Determination of mechanical properties of rocks using simple methods

Kılıç, Alaettin; Teymen, Ahmet

doi:10.1007/s10064-008-0128-3

Cited by 272 publications

(54 citation statements)

References 11 publications

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“…Furthermore, low standard deviation is observed for V p for all the materials tested and thus the data are clustered around the mean V p values. It is also mentioned that similar values were obtained in other studies for marble and quartzite [51], sandstone [52] and quartz [53].…”

Section: Uniaxial Compressive Strength and Modulus Of Elasticitysupporting

confidence: 73%

Correlation between Material Properties and Breakage Rate Parameters Determined from Grinding Tests

Petrakis

Komnitsas

2018

Applied Sciences

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Abstract:The present study investigates four materials, namely quartz, marble, quartzite and metasandstone and aims to establish correlations, with the use of simple and multiple regression analysis, between their properties and breakage rate parameters. The material properties considered in this study derived from the application of destructive and non-destructive tests and include P-wave velocity (V p ), Schmidt rebound value (R L ), uniaxial compressive strength (UCS) and tangent modulus of elasticity (E t ), while the breakage rate parameters determined from batch grinding tests, include breakage rate S i , maximum breakage rate S m , α T and α, and optimum particle size x m . The results indicate that the properties of all materials examined show very good correlation and can be used to predict S i or α T . Furthermore, parameter α is well correlated with V p , R L and E t using inverse exponential functions, while S m is strongly correlated with R L and UCS. Overall, it is deduced that multiple regression analysis involving two independent variables is a reliable approach and can be used to identify correlations between properties and breakage rate parameters for quartz, quartzite and metasandstone, which are silica rich materials. The only exception shown is the determination of x m for marble.

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Section: Uniaxial Compressive Strength and Modulus Of Elasticitysupporting

confidence: 73%

Correlation between Material Properties and Breakage Rate Parameters Determined from Grinding Tests

Petrakis

Komnitsas

2018

Applied Sciences

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“…Kılıc and Teymen [16] found the equation by which the tensile strength can be estimated using point load strength index (10) and Schmidt hardness according to the expression (11) TS = 7,5 ln(I s(50) ) + 2,22,…”

Section: Results Of Estimation Obtained By Using the Equation From Thmentioning

confidence: 99%

Estimation of uniaxial compressive and tensile strength of rock material from gypsum deposits in the area of Knin

2017

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Original scientific paperIn certain engineering tasks of preliminary nature there is a need for an estimation of important physical and mechanical properties such as uniaxial compressive and tensile strength. This paper analyzes the problems related to the assessment of uniaxial compressive and tensile strength of rock material in the deposit of gypsum in the Knin area. Its engineering characteristics strongly depend on the quantity of ground water and temperature and therefore it is difficult to conduct laboratory tests on this kind of material. The paper describes the comparison of estimates using equations published in the literature and equations that have been established on the basis of the research for the purpose of writing this paper. Keywords: estimation; natural gypsum; tensile strength; uniaxial compressive strength Procjena jednoosne tlačne i vlačne čvrstoće stijenskog materijala iz ležišta gipsa na području KninaIzvorni znanstveni članak U određenim inženjerskim poslovima preliminarnog karaktera javlja se potreba za procjenom važnijih fizikalno mehaničkih značajki kao što su jednoosna tlačna i vlačna čvrstoća. Ovaj rad bavi se problemima vezanim uz procjene jednoosne tlačne i vlačne čvrstoće stijenskog materijala u ležištu gipsa na području Knina. Njegove inženjerske karakteristike jako ovise o količini podzemne vode i temperaturi te je otežano provođenje laboratorijskih ispitivanja takve vrste materijala. U radu su opisane usporedbe procjene pomoću jednadžbi objavljenih u literaturi i onih koje su uspostavljene na temelju istraživanja u svrhu izrade ovog rada.

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“…The analysis of previous studies [1][2][3][4][5][6][7][8][9][10][11] shows that the crushed rock of the optimal granulometric composition should consist of various size particles taken in a certain quantitative ratio, which provides increased internal friction and adhesion between the particles, high unit weight and an insignificant intensity of the grain grinding process [12 -15]. These conditions can be achieved with the largest possible number of coarse particles and minimal content of fine and silty particles necessary to create high unit weight and to ensure the cohesion of large particles.…”

Section: Introductionmentioning

confidence: 99%

Justification of the Optimal Granulometric Composition of Crushed Rocks for Open-Pit Mine Road Surfacing

et al. 2017

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Abstract. The specific weight of the open coal mining method in Kuzbass is constantly growing due to higher hazard and low profitability of the underground mining method. It is possible to reduce the cost of open-pit coal mining using overburden rock in constructing temporary pit roads. The purpose of the work is to justify the possibility of using overburden rock for the construction of temporary technological roads. To this end, we set the tasks to determine the rational granulometric composition of crushed rock, dependences of its unit weight, static elastic modulus, and ultimate shear resistance. This study justifies the most efficient granulometric composition of crushed rock based on theoretical studies of the optimal structure of granular materials, taking into account the probability theory of particle-particle packing, laboratory studies of the dependence of the unit weight and the static elastic modulus on the content of particles of different sizes, and also the calculation of ultimate shear resistance of crushed rocks. As a result of the conducted studies, it has been established that the optimal granulometric composition of crushed rock, which at the same time ensures high values of unit weight, static elastic modulus and ultimate shear resistance, is achieved when the content of particles larger than half of the maximum is 40 to 55% and increases integrally with decreasing of the average particle diameter.

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Determination of mechanical properties of rocks using simple methods

Cited by 272 publications

References 11 publications

Correlation between Material Properties and Breakage Rate Parameters Determined from Grinding Tests

Correlation between Material Properties and Breakage Rate Parameters Determined from Grinding Tests

Estimation of uniaxial compressive and tensile strength of rock material from gypsum deposits in the area of Knin

Justification of the Optimal Granulometric Composition of Crushed Rocks for Open-Pit Mine Road Surfacing

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