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determination uniaxial compressive strength of rocks

: Determination of uniaxial compressive strength of ...

2013-11-1 The uniaxial compressive strength (UCS) of intact rock is an important mechanical parameter which is required for many engineering projects. In some engineering projects such as well drilling for petroleum production, due to the depth of the well, there are some limitations for obtaining rock core samples and determining the UCS.
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: determination uniaxial compressive strength of rocks

The Schmidt hammer is being widely used for estimating the uniaxial compressive strength (UCS) of rocks because of its simplicity, rapidity and portability. However, determination of the Schmidt hardness (R) in laboratory conditions is sometimes very difficult for weak rocks due to the fact that samples can be broken during the test, as well as ...
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: The determination of uniaxial compressive strength from ...

2014-2-20 The uniaxial compressive strength (UCS) of rock is widely used in various engineering projects performed in rock environment. Although the method is relatively simple, it is time consuming and expensive. It also requires well-prepared rock cores. For this reason, indirect tests are frequently used to predict the UCS for preliminary studies.
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: The determination of uniaxial compressive strength from ...

The uniaxial compressive strength–point load index relation was studied for pyroclastic rocks. • Very strong exponential relations were found uniaxial compressive strength and point load index. • The results were compared to the studies in the literature.
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: Estimating uniaxial compressive strength of rocks using ...

2013-8-1 From past to present, direct and indirect methods have been used to determine UCS of rocks in field and laboratory. UCS of rocks can be directly measured in the laboratory. Several methods, such as point load strength index test, block punch strength index test, Schmidt hammer test, are used for indirect determination of UCS.
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: Uniaxial Compressive Strength - an overview ...

27.7.5 Compressive Strength. Uniaxial compressive strength (UCS) is one of the most important mechanical properties of rocks widely used in different engineering related projects to evaluate the stability of structures against loads. Determination of the UCS demands the presence of high quality core samples which cannot always be provided due to existence of weak, fractured, and foliated rocks.
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: The determination of uniaxial compressive strength from ...

Abstract 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. Many researchers have investigated the relation between uniaxial compressive strength (UCS) and point load index (Is) for different rock types.
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: Suggested Methods for Determining the Uniaxial

2005-10-18 FOR DETERMINATION OF THE UNIAXIAL COMPRESSIVE STRENGTH OF ROCK MATERIALS 1. SCOPE This method of test is intended to measure the uni- axial compressive strength of a rock sample in the form of specimens of regular geometry. The test is mainly intended for strength classification and characterization of intact rock. 2.
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: Determination of compressive strength of rocks using ...

2019-5-7 1. Central Mining And Fuel Research Institute Regional Centre, Nagpur, Google Scholar; 2. Ergul Yasar Yasin Erdogan, Correlating sound velocity with the density, compressive strength and Young’s Modulus of Carbonate Rocks International Journal of Rock Mechanics and Mining Science –July (2004). Google Scholar Crossref; 3. P.B. Choudhary and T.G. Sitharam Ground Chracterization using
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: STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1 ...

2006-3-19 STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1. INTRODUCTION 2. TESTING OF INTACT ROCK FOR STRENGTH 2.1 Uniaxial Compression 2.2 Point Load Testing 2.3 Uniaxial Tension 2.4 Indirect Tension Tests 2.5 Shear Tests 2.6 Confined Compression Tests (Triaxial Tests) 2.7 Biaxial and Multiaxial Tests 2.8 Other Tests 3. PARAMETERS AFFECTING ROCK STRENGTH 4.
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: determination uniaxial compressive strength of rocks

The Schmidt hammer is being widely used for estimating the uniaxial compressive strength (UCS) of rocks because of its simplicity, rapidity and portability. However, determination of the Schmidt hardness (R) in laboratory conditions is sometimes very difficult for weak rocks due to the fact that samples can be broken during the test, as well as ...
Read More

: DETERMINATION OF UNIAXIAL COMPRESSIVE STRENGTH

The most used parameter in rock engineering practice is the Uniaxial Compressive Strength (UCS). It is often estimated on the field or trough Index-to-strength conversion factors proposed by various researchers for a specific rock type. The research presented in the paper involved field estimation of Uniaxial Compressive Strength using Schmidt rebound hammer and Point Load laboratory testing ...
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: The determination of uniaxial compressive strength from ...

Abstract 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. Many researchers have investigated the relation between uniaxial compressive strength (UCS) and point load index (Is) for different rock types.
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: Determination of Uniaxial Compressive Strength of Granite ...

Summary The uniaxial compressive strength (UCS) is one of the most important design parameters in a rock engineering projects and it should be determined as a prerequisite for geotechnical studies. Since direct determination of geomechanical properties of rocks are usually expensive, time consuming and only capable in local geomechanical properties determination, simple and non-destructive ...
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: DETERMINATION OF UNIAXIAL COMPRESSIVE

rocks. These results can contribute to better estimation of the local design parameters, when direct determination of the UCS in the laboratory is not possible, rather than adopting the values from around the world case studies. Key words: limestone, Uniaxial Compressive Strength, Point Load Test, Schmidt rebound hammer, field identification ...
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: Determination of compressive strength of rocks using ...

2019-5-7 1. Central Mining And Fuel Research Institute Regional Centre, Nagpur, Google Scholar; 2. Ergul Yasar Yasin Erdogan, Correlating sound velocity with the density, compressive strength and Young’s Modulus of Carbonate Rocks International Journal of Rock Mechanics and Mining Science –July (2004). Google Scholar Crossref; 3. P.B. Choudhary and T.G. Sitharam Ground Chracterization using
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: Determination of compressive strength of rocks using ...

One of the most significant techniques for evaluation of rock strength is by using the simple and economical Non-Destructive Technique (NDT). The ultrasound velocity of a rock mass is closely related to the intact rock properties and measuring the velocity in rock masses interrogates the rock structure and texture. The important influencing factors are rock type, mineralogical composition ...
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: A STUDY ON MODES OF ROCK FAILURE UNDER

2014-7-16 3.4 Determination of water content 18 3.5 Determination of porosity density 19 3.6 Determination of slake durability index 21 3.7 Determination of tensile strength 22 3.8 Determination of hardness 24 3.9 Determination of unconfined compressive strength 24 3.10 Determination of compressive strength 25 3.11 X- Ray analysis 26
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: Rock mass properties - Rocscience

2018-9-21 determine the uniaxial compressive strength V ci and the Hoek-Brown constant m i as described by Hoek and Brown (1980a). In this analysis, equation (5) is re-written in the form: (6) where ' x V 3 and ' 2 y (1 3) For n specimens the uniaxial compressive strength , the constant and the coefficient of determination 2 r are calculated from: n x x ...
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: Predicting Unconfined Compressive Strength of Intact

2021-5-28 UCS 12 .5 PLS Pyroclastic rocks [31] UCS 24.301 4.874 TS Basalt and limestone [32] 18 .251 0.0162 43 .214 2.56 1.384 127 .411 V p UCS n PLS Carbonate rocks [33] UCS 0.047 exp( 0.065 SD) Pyroclastic rocks [34] UCS Uniaxial compressive strength, n porosity, ρ density, SH Schmidt hardness, PLS point load strength, Vp Primary wave velocity, BPI
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: determination uniaxial compressive strength of rocks

The Schmidt hammer is being widely used for estimating the uniaxial compressive strength (UCS) of rocks because of its simplicity, rapidity and portability. However, determination of the Schmidt hardness (R) in laboratory conditions is sometimes very difficult for weak rocks due to the fact that samples can be broken during the test, as well as ...
Read More

: Determination of Uniaxial Compressive Strength of ...

The most used parameter in rock engineering practice is the Uniaxial Compressive Strength (UCS). It is often estimated on the field or trough Index-to-strength conversion factors proposed by various researchers for a specific rock type. The research presented in the paper involved field estimation of Uniaxial Compressive Strength using Schmidt rebound hammer and Point Load laboratory testing ...
Read More

: Determination and Estimation of Uniaxial Compressive ...

2015-5-10 Uniaxial Compressive Strength (UCS) of rocks is an important mechanical parameter for many civil engineering and rock engineering applications such as tunnel excavation, slope stability and foundation design.
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: visual determination method for uniaxial compressive ...

visual determination method for uniaxial compressive strength estimation based on Croatian carbonate rock materials [2017] Pollak, Davor; Gulam, Vlatko; Bostjančić, Iris;
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: SUGGESTED METHODS FOR DETERMINING THE UNIAXIAL COMPRESSIVE ...

The suggested methods were prepared in 1978. The method of test set out in part 1 is intended to measure the uniaxial compressive strength of a rock sample in the form of specimens of regular geometry. The test is mainly intended for strength classification and characterization of intact rock.
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: Determination of compressive strength of rocks using ...

One of the most significant techniques for evaluation of rock strength is by using the simple and economical Non-Destructive Technique (NDT). The ultrasound velocity of a rock mass is closely related to the intact rock properties and measuring the velocity in rock masses interrogates the rock structure and texture. The important influencing factors are rock type, mineralogical composition ...
Read More

: Estimating the uniaxial compressive strength of a volcanic ...

2010-7-7 Estimating the uniaxial compressive strength of a volcanic bimrock H. Sonmeza,, C ... Preparation of the standard sized cores from geological mixtures or fragmented rocks such as me´langes, fault rocks, coarse pyroclastic rocks, breccias and sheared serpentinites is often extremely difﬁcult. Therefore, determination of the mechanical ...
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: (PDF) Determination of Rock Strength and Deformability of ...

The determination of the modulus of elasticity is achieved through: a) the uniaxial compressive strength (σci), b) the uniaxial compressive strength (σci) and the longitudinal wave velocity (VP). The ratio of the modulus of elasticity and uniaxial strength (MR) has been determined for a number of rock types and compared with that proposed by ...
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: A STUDY ON MODES OF ROCK FAILURE UNDER

2014-7-16 3.4 Determination of water content 18 3.5 Determination of porosity density 19 3.6 Determination of slake durability index 21 3.7 Determination of tensile strength 22 3.8 Determination of hardness 24 3.9 Determination of unconfined compressive strength 24 3.10 Determination of compressive strength 25 3.11 X- Ray analysis 26
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: Rock mass properties - Rocscience

2018-9-21 determine the uniaxial compressive strength V ci and the Hoek-Brown constant m i as described by Hoek and Brown (1980a). In this analysis, equation (5) is re-written in the form: (6) where ' x V 3 and ' 2 y (1 3) For n specimens the uniaxial compressive strength , the constant and the coefficient of determination 2 r are calculated from: n x x ...
Read More

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