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Point Load Strength Index of Half-Cut Core Specimens and Correlation with Uniaxial Compressive Strength

Rock Mechanics and Rock Engineering, 2020
The point load strength index is a widely used index in rock engineering, and cylindrical core and irregular shaped specimens are used in its determination.
Merve Şahin, Reşat Ulusay, Hasan Karakul   +2 more
exaly   +2 more sources

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The effect of rock classes on the relation between uniaxial compressive strength and point load index

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
exaly   +3 more sources

Investigating the Accuracy of Specimen Shape for Point Load Index Test in Predicting the Uniaxial Compressive Strength for Rocks Using Regression Analysis and Machine Learning

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
exaly   +2 more sources

Suggesting new protocol to determine point load strength index of rocks

Arabian Journal of Geosciences, 2022
Nima Babanouri, Mostafa Asadizadeh, Hamid Reza Nejati   +2 more
exaly   +2 more sources

Relationship between point load index and compressive strength of foliated metamorphic rocks at different loading angles

Arabian Journal of Geosciences, 2022
Durga Acharya, A K Raina, Suman Panthee   +2 more
exaly   +2 more sources

Uniaxial compressive strength and point load index of volcanic irregular lumps

International Journal of Rock Mechanics and Minings Sciences, 2017
K T Chau, Jian-Hua Yin
exaly   +2 more sources

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
exaly   +2 more sources

Point-load strength: An index for classification of rock material

Bulletin of the International Association of Engineering Geology, 1991
Point-load strength (Is) as a measure for the determination of rock strength and for estimating uniaxial (unconfined) compressive strength (UCS) are described and both put together and used for rock strength classification of brittle and hard rocks. The estimated point-load strength values of specimens of varying sizes and also the values corrected to ...
D. K. Ghosh, M. Srivastava
openaire   +1 more source

Correlation Between Point Load Index and Uniaxial Compressive Strength for Different Rock Types

Rock Mechanics and Rock Engineering, 2011
Ashutosh Kainthola, Singh T N, Kainthola Ashutosh   +2 more
exaly   +3 more sources

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
Kadir Karaman, Ayberk Kaya, Ayhan Kesimal   +2 more
openaire   +1 more source