Correlation between uniaxial strength and point …

Determination of rock engineering properties is important in civil, mining and geotechnical engineering. Uniaxial Compressive Strength (UCS) is one of the most important properties of rocks.

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PHYSICAL PARAMETERS, TENSILE AND COMPRESSIVE …

on carbonate rocks and represented that uniaxial com-pressive strength had an increasing trend with increasing grain size for 0 to 5 mm; and in the following it had a de-creasing trend with increasing grain size for 5 to 50 mm, in fact, carbonate rock with medium grain size had the highest uniaxial compressive strength. They also observed

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(PDF) Correlation of uniaxial compressive strength …

Correlation of uniaxial compressive strength with the dynamic elastic modulus, P - wave velocity and S - wave velocity of different rock types June 2019 Podzemni radovi 2019(34):11-25

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compressive strength and the factor m in Hoek-Brown …

Normal variation of compressive strength and the factor m in Hoek-Brown failure criterion for some rocks (data from Hanssen, 1988; Hoek and Brown, 1980 and Hoek et al., 1992). Rock name Uniaxial compressive strength c Rating of the factor Rock name Uniaxial compressive strength c factor Rating of the low average high m i

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Uniaxial Compressive Strength

The uniaxial compressive strength test is used to determine the maximum value of stress obtained before failure. The determination of this parameter was carried out on specimens with dimensions 7 × 7 × 7 cm along two orthogonal directions (side A–side C), in order to identify possible anisotropies which were not identified by the test of water absorption by …

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Engineering Classification for the Determination of the Uniaxial …

The input parameters include the uniaxial compressive strength UCS of their fragments (UCS FR), the UCS of the matrix (UCS MR) and the matrix ratio M (%). Moreover, guidelines to measure the strength of the matrix are provided for cases that this is too weak to perform laboratory tests.

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Predicting the Uniaxial Compressive and Tensile Strengths …

Uniaxial compressive and tensile strengths are considered key properties for characterising rock material in engineering practice. They are determined, directly and indirectly, as described by the International Society for Rock Mechanics (ISRM) and the American Society for Testing Materials (ASTM) ().The point load strength index (PLSI), …

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Comparative Study on Convolutional Neural Network and …

The strength tests and polynomial response surface model (PRSM) were used to analyze the non-linear correlation between the influencing factors and the uniaxial compressive strength (UCS).

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PHYSICAL PARAMETERS, TENSILE AND COMPRESSIVE …

pressive strength had an increasing trend with increasing grain size for 0 to 5 mm; and in the following it had a de- creasing trend with increasing grain size for 5 to 50 mm,

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The influence of crystal size of dolomite on engineering …

Dolomite is a sedimentary rock that typically has a grain size varying between 10 and 300 µm (Shakoor and Bonelli 1991; Hatzor and Palchik 1997). ... the core axes, as required …

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Correlation of Geo-Mechanics Parameters with Uniaxial …

This paper estimates the correlation between the physical and mechanical characteristics of dolomitic limestone. Forty samples were measured and the results were used to derive the empirical equations for the relations between the uniaxial compressive strength (UCS), elastic modulus (E), P-wave velocity ((v_{p})), Poisson's ratio (μ), …

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Uniaxial compressive strength of Malaysian weathered …

Therefore this research work is to assess and determine the effects of cyclic loading on the uniaxial compressive strength of weathered granite. With the use of advance GCTS Triaxial RTX-3000 machine, it is now possible to apply a fixed number of cycles to the rock specimens. The rock specimens used for the characterization purpose …

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| Uniaxial compressive strength law: (A) the degradation of dolomite …

Eq. 2, σ (t) represents the uniaxial compressive strength of the rock sample placed under high-humidity environment for t d. s 0 is the uniaxial compressive strength of the rock sample under ...

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Comparative study on convolutional neural network and …

Sandy Dolomite is a kind of widely distributed rock. The uniaxial compressive strength (UCS) of Sandy Dolomite is an important metric in the application in civil engineering, geotechnical engineering, and underground engineering. Direct measurement of UCS is costly, time-consuming, and even infeasib …

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Rock Mechanics Solved Problems

Uniaxial compressive strength of 80 MPa. A RQD of 80%. Spacing between joints is 80 mm. The joint set has been described as follows: → Average discontinuity length is 4 m. → Separation of joints is generally less than 0.1 mm. → Joints are slightly rough and moderately weathered.

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Determination of Rock Strength and Deformability of Intact …

The range of Young modulus in relation to the uniaxial com pressive strength was determined. ... 21-23 Harder rocks (sandstone, limestone, dolomite) 14-16 ..... Similar values for factor k, which ...

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Comparative study on convolutional neural network and …

Sandy Dolomite is a kind of widely distributed rock. The uniaxial compressive strength (UCS) of Sandy Dolomite is an important metric in the application in civil engineering, geotechnical ...

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Physical parameters, tensile and compressive strength …

point load strength. Keywords: rock sample, laboratory tests, simple linear regression, dolomite rock, grain size, petrography, uniaxial compres-sive strength, compressional wave velocity, shear wave velocity, Brazilian tensile strength. Introduction Micro texture, mineralogical composition, petrographic

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Splitting tensile strength vs. uniaxial compressive strength …

Download scientific diagram | Splitting tensile strength vs. uniaxial compressive strength (left) and dolomite content vs. product of splitting tensile strength and result of LCPC test. from ...

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Comparative Study on Convolutional Neural Network and …

Sandy dolomite is a kind of widely distributed rock. The uniaxial compressive strength (UCS) of sandy dolomite is an important metric in the application in civil engineering, geotechnical ...

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Estimation of uniaxial compressive strength of North …

allowed the initiation of equations to estimate uniaxial com-pressive strength on the basis of density, porosity, and SRN measurements. Materials and methods To achieve the purpose of this study, a sampling campaign was carried out in different geological areas of northern Algeria (Fig. 2) located in the Maghrebides chain (Auboin and Durand ...

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STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES

STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1. INTRODUCTION 2. TESTING OF INTACT ROCK FOR STRENGTH 2.1 Uniaxial Compression 2.2 Point …

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Strength prediction model of fractured dolomite and …

To investigate the mechanical properties of fractured dolomite, this study analyzed the fracture characteristics (dip angle, length, position, quantity) using the Pearson coefficient and MIC ...

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Physical parameters, tensile and compressive …

A dependence between the uniaxial compressive strength in the saturated state was established, including the explanation in which cases the correlation can be used to estimate the uniaxial ...

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PHYSICAL PARAMETERS, TENSILE AND COMPRESSIVE …

There are also a strong correlation among the uniaxial compressive strength, Brazilian tensile strength and point load strength. Keywords: rock sample, laboratory tests, simple linear regression, dolomite rock, grain size, petrography, uniaxial compres-sive strength, compressional wave velocity, shear wave velocity, Brazilian tensile strength.

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STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES

Typical values of uniaxial strength (in MPa) for nine common rock types (after Johnson and Degraff, 1988). Rock Tensile Strength (MPa) Compressive Strength (MPa) Limestone Sandstone Sandstone Sandstone Mudstone Limestone Limestone Ironstone Sandstone 18.00 ± 0.62 (20) 19.17 ± 0.21 (23) 23.10 ± 0.48 (19)

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Comparative Study on Convolutional Neural Network and …

The application in civil engineering, geotechnical engineering, and underground engineering depend heavily on the uniaxial compressive strength (UCS) of sandy dolomite. Direct measurement of UCS is costly, time-consuming, and even infeasible in some cases. Therefore, an indirect measuring method is required for the …

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Effects of mineralogical composition on uniaxial compressive strengths …

It indicated that the uniaxial compressive strength of sandstones was significantly dependent on the quartz content. However, both the calcite and dolomite contents lead to high values of P-value much larger than 0.05. Therefore, the uniaxial compressive strength of sandstones was not affected by the carbonate (i.e., calcite and …

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