Results 241 to 250 of about 919,764 (280)

Correlations of Bond and Breakage Parameters of Some Ores with the Corresponding Point Load Index

Particle and Particle Systems Characterization, 2012
AbstractThis paper presents significant correlations of the Bond parameter (work index, Wi and grindability, G) and the breakage parameters (specific rate of breakage, Si and the fineness value, γ) with the point load index (Is(50)). The experimental results obtained from calcite, barite, colemanite and bauxite samples have demonstrated that the Bond ...
A Özkan
exaly   +2 more sources

The Use of the Point Load Index in Weak Carbonate Rocks

1985
There has been increasing use of the point load index as a measure of rock strength since its introduction in 1972. The test results have been correlated to in the uniaxial compressive strength σf of the rock. The correlations between the rates of point load index Is and the uniaxial strength σf for conventional strong rocks are σf/Is = 16 to 24.
exaly   +2 more sources

An assessment on the correlations between uniaxial compression strength and point load index

Arabian Journal of Geosciences, 2022
Candan Gokceoglu, Ali Kayabasi
exaly   +2 more sources

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
exaly   +3 more sources

Suggesting new protocol to determine point load strength index of rocks

Arabian Journal of Geosciences, 2022
Nima Babanouri, Mostafa Asadizadeh
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

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

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

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

Rock Mechanics and Rock Engineering, 2011
Ashutosh kainthola
exaly   +3 more sources