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Use of the point load index in estimation of the strength rating for the RMR system
Journal of African Earth Sciences, 2015 Abstract The Rock Mass Rating (RMR) system is a worldwide reference for design applications involving estimation of rock mass properties and tunnel support. In the RMR system, Uniaxial Compressive Strength (UCS) is an important input parameter to determine the strength rating of intact rock. In practice, there are some difficulties in determining the
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Tunnelling and Underground Space Technology, 2017
Abstract The Uniaxial Compressive Strength (UCS) of rock cores is a key parameter for design analysis of rock engineering projects such as rock tunnels and piles in rockets. Diametral and axial point load tests on cylinder cores have been used to obtain Point Load Strength Index (PLSI). This PLSI is correlated to UCS.
Jian-Hua Yin, K T Chau
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Abstract The Uniaxial Compressive Strength (UCS) of rock cores is a key parameter for design analysis of rock engineering projects such as rock tunnels and piles in rockets. Diametral and axial point load tests on cylinder cores have been used to obtain Point Load Strength Index (PLSI). This PLSI is correlated to UCS.
Jian-Hua Yin, K T Chau
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Bulletin of Engineering Geology and the Environment, 2015
The strength conversion factor (k) is the ratio between the uniaxial compressive strength (UCS) and the point load index (PLI). It has been used to estimate the UCS from the PLI since the 1960s. Many researchers have investigated the relationship between UCS and PLI for various rock types of different geological origins, such as igneous, sedimentary ...
Ayberk Kaya +2 more
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The strength conversion factor (k) is the ratio between the uniaxial compressive strength (UCS) and the point load index (PLI). It has been used to estimate the UCS from the PLI since the 1960s. Many researchers have investigated the relationship between UCS and PLI for various rock types of different geological origins, such as igneous, sedimentary ...
Ayberk Kaya +2 more
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Bulletin of Engineering Geology and the Environment, 2009
Uniaxial compressive strength and point load tests were carried out on 17 igneous, 16 metamorphic and 19 sedimentary rocks and the values correlated with their Is values. The influence of the different rock type was investigated using regression analysis and the derived equations were statistically tested.
S Kahraman, Kahraman S
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Uniaxial compressive strength and point load tests were carried out on 17 igneous, 16 metamorphic and 19 sedimentary rocks and the values correlated with their Is values. The influence of the different rock type was investigated using regression analysis and the derived equations were statistically tested.
S Kahraman, Kahraman S
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Suggesting new protocol to determine point load strength index of rocks
Arabian Journal of Geosciences, 2022Nima Babanouri +2 more
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Mining, Metallurgy and Exploration, 2023 The strength of rocks and soil is a crucial design parameter in engineering projects, and it can be determined through various test methods such as uniaxial compressive strength, tensile strength, and shear strength.
Deniz Akbay
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Uniaxial compressive strength and point load index of volcanic irregular lumps
International Journal of Rock Mechanics and Minings Sciences, 2017K T Chau, Jian-Hua Yin
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Influence of orthoclase phenocrysts on point load strength of granitic rocks [PDF]
Engineering Geology, 2012 The point load index test involves loading cylindrical, block or irregular rock samples between two conical platens until sample failure. The point load strength index (I-s) determined using failure load and sample dimension is widely and variously used ...
M Fener
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The determination of uniaxial compressive strength from point load strength for pyroclastic rocks
Engineering Geology, 2014 The point load test has often been reported as an indirect measure of compressive strength. It has been used widely in practice due to easy testing, the simplicity of specimen preparation, and possible field applications.
S Kahraman
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