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range of 35% to 85% of static strength. Lee et al. [6] revealed that the fatigue failure of rock fall between 70% to 82% stress level. Under maximum number of cycles, fatigue strength was typically between 50% and 70% of the static strength of rock [7]. Ray, Sarkar and Singht [8] reported that uniaxial compressive strength decrease with
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 ...
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), point load strength, …
Proposed correlation to predict uniaxial compressive strength (UCS) value from the sonic velocity slowness (1/V p ) results is expressed as UCS = 1144.9 e -11183@BULLET(1/Vp) with coefficient of ...
Prediction of elastic mechanical properties such as uniaxial compressive strength (UCS) and static Young's modulus (E s) is one of the main purposes of studies in geological, geotechnical, geophysical, petroleum, and rock engineering projects. The UCS test is applied to determine them. However, this test is destructive, expensive, time-consuming, and requires …
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 by ISRM …
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 ...
Uniaxial compressive strength (UCS) is an essential mechanical parameter for any rock mass characterization, whereas the elastic properties of rocks help us understand the deformational behavior ...
The uniaxial compressive strength of a rock under static loading often decreases with an increasing temperature at which the rock has been heat-treated before strength testing. This conclusion is drawn from a great number of experiments [1,2,4,8,9,11,17–19]. The higher the temperature is, the lower the strength.
CALCULATIONS (a) The uniaxial compressive strength of the specimen shall be calculated by dividing the maximum load car- ried by the specimen during the test, by the original cross-sectional area. 1. SCOPE This method of test is intended to determine stress- strain curves and Young's modulus and Poisson's ratio in uniaxial compression of a rock ...
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 ...
PDF | On Dec 14, 2017, Amin Jamshidi and others published The Effect of Density and Porosity on the Correlation Between Uniaxial Compressive Strength and P-wave Velocity | Find, read and cite all ...
The inuence of crystal size of dolomite on engineering properties: a case study from the Rus Formation, Dammam Dome, Eastern Saudi Arabia ... the core axes, as required by ISRM (1978). Uniaxial com-pressive strength tests were performed at a perpetual rate of 0.002 mm/s using a Matest-automatic control machine with a 2000 kN load frame ...
The prediction of strength properties is a topic of interest in many engineering fields. The common tests used to evaluate rock strength include the uniaxial compressive strength test (UCS ...
J. S. Cargill A. Shakoor (1990) ArticleTitle Evaluation of empirical methods for measuring the uniaxial compressive strength of rock Int. J. Rock Mech. Min. Sci. Geomech. Abstr. 27 495–503 Occurrence Handle 10.1016/0148-9062(90)91001-N
The uniaxial compressive strength and static Young's modulus ( Es ) of intact rocks are the most important geotechnical parameters for stability analysis of surface and underground structures. These parameters are obtained by the uniaxial compressive test. Although this test is simple, the preparation of the samples, especially of soft rocks, is a hard and time consuming task.
3.2.1 Degradation Law of the Uniaxial Compressive Strength of Dolomite. According to 20 groups of test results, the basic mechanic parameters such as peak strength, elastic modulus and Poisson's ratio of dolomite under uniaxial …
The compressive strength of samples BK and EK is comparable to those of Golden Ikpeshi dolomite (Obasi and Isife 2012), Freedom Ikpeshi dolomite, and Geoworks dolomite Igarra (Saliu et al ...
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 …
Prediction of elastic mechanical properties such as uniaxial compressive strength (UCS) and static Young's modulus (Es) is one of the main purposes of studies in geological, geotechnical, geophysical, petroleum, and rock engineering projects. The UCS test is applied to determine them. However, this test is destructive, expensive, time-consuming, and requires high-quality …
predicting the uniaxial compressive strength and static Young's modulus of these samples are proposed. Thus, in comparison with other proposed equations, these equations have larger value of ...
The uniaxial compressive strength and static Young's modulus (E s) of intact rocks are the most important geotechnical parameters for stability analysis of surface and …
1. Introduction. Uniaxial compressive strength (UCS) is one of the most widely used rock mechanical parameters in rock engineering like design and construction of foundations, tunneling, slope stability investigations, etc. UCS is also the only parameter to assess rock material strength in Rock Mass Rating (RMR) proposed by Bieniawski (1989).However, …
The Effect of Density and Porosity on the Correlation Between Uniaxial Compressive Strength and P-wave Velocity Density,Porosity,P-wave velocity,Uniaxial compressive strength
The point load test is an effective and rapid way to predict rock strength. Regarding the investigation of point load strength and the failure characteristics of rock, the point load test's ...
Abstract: 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 infeasible in some cases.
without changing the internal structure of the sample, and at relatively low operational costs as compared to static testing; therefore, it is faster, cheaper and simpler than
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
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 …
The uniaxial compressive strength and static Young's modulus (E s) of intact rocks are the most important geotechnical parameters for stability analysis of surface and underground structures. These parameters are obtained by the uniaxial compressive test. Although this test is simple, the preparation of the samples, especially of soft rocks, is a hard and time consuming …
