Results 251 to 260 of about 19,983 (297)

Predicting Uniaxial Compressive Strength From Log Parameters

Proceedings of SPE Annual Technical Conference and Exhibition, 1986
ABSTRACT Models for prediction of in-situ rock behaviour often suffer from lack of relevant input data, especially rock strength data. Rock mechanical testing of cores provides only discrete data points. This paper presents a method which produces a continuous plot of uniaxial compressive strength.
K. Tokle, P. Horsrud, R. K. Bratli
openaire   +1 more source

On the uniaxial compression strength of frozen gravelly soils

Cold Regions Science and Technology, 2020
Abstract Frozen gravelly soils are often encountered in both cold regions engineering and urban underground constructions by artificial freezing method. This work takes a gravelly sand in Beijing as the basic material. Gravel grains of 10–20 mm in size are obtained and mixed with sand grains at certain ratios and then saturated frozen samples are ...
Junlin Zhao, Pei Zhang, Xiao Yang, Jilin Qi   +3 more
openaire   +1 more source

Cube tests and the uniaxial compressive strength of concrete

Magazine of Concrete Research, 1965
Summary The cube is undoubtedly the most convenient specimen to use when large numbers of crushing tests are required for concrete control purposes. The cylinder, or prism, on the other hand can give a much better estimate of the uniaxial compressive strength of concrete.
B. P. Hughes, B. Bahramian
openaire   +1 more source

Size Effect of Uniaxial Compressive Strength of Limestone

Applied Mechanics and Materials, 2012
Using the MTS testing machine, the uniaxial compressive test of varisized da-qing limestones were undertaken, and the effect of dimensions about compressive strength, peak strain, elastic modulus and destructional forms of rock specimens were studied.
Ze Hui Chen, Chang Wu Liu, Ji Wei Deng
openaire   +1 more source

Uniaxial compressive and undrained shear strength of soil [PDF]

Proceedings of 10th Symposium on Doctoral Studies in Civil Engineering
Uniaxial compressive strength and undrained shear strength are among the most important soil parameters in geotechnical engineering. The unconsolidated undrained triaxial test and the falling cone test determine them. The uniaxial compressive strength of soil is the maximum compressive stress that the soil can withstand before failure in drained ...
Jurić-Kaćunić, Danijela, Baletić, Doria   +1 more
openaire   +1 more source

Estimating the uniaxial compressive strength of a volcanic bimrock

International Journal of Rock Mechanics and Mining Sciences, 2006
Abstract Preparation of the standard sized cores from geological mixtures or fragmented rocks such as melanges, fault rocks, coarse pyroclastic rocks, breccias and sheared serpentinites is often extremely difficult. Therefore, determination of the mechanical parameters such as cohesion, friction angle and UCS is extraordinarily difficult for these ...
H. Sonmez, C. Gokceoglu, E.W. Medley, E. Tuncay, H.A. Nefeslioglu   +4 more
openaire   +1 more source

Prediction of The Uniaxial Compressive Strength of Rocks Materials

2018
This study briefly will review determining UCS including direct and indirect methods including regression model soft computing techniques such as fuzzy interface system (FIS), artifical neural network (ANN) and least sqeares support vector machine (LS-SVM). These has advantages and disadvantages of these methods were discussed in term predicting UCS of
Ceryan, Nurcihan, Can, Nuray Korkmaz
openaire   +2 more sources

Approaching the Limits of Strength: Measuring the Uniaxial Compressive Strength of Diamond at Small Scales

Nano Letters, 2015
Diamond ⟨100⟩- and ⟨111⟩-oriented nanopillars were fabricated by focused ion beam (FIB) milling from synthetic single crystals and compressed using a larger diameter diamond punch. Uniaxial compressive failure was observed via fracture with a plateau in maximum stress of ∼0.25 TPa, the highest uniaxial strength yet measured.
Wheeler JM, Raghavan R, Wehrs J, Zhang Y, Erni R, Michler J   +5 more
openaire   +3 more sources

The Influence of Temperature on the Uniaxial Compressive Strength of Rocks

Juniorstav 2024: Proceedings 26th International Scientific Conference Of Civil Engineering
This study focuses on determination of the temperature effect on uniaxial compressive strength of different rock types. For our laboratory tests, we chose local greywacke from the Kobeřice quarry which is situated 10 km south of Prostějov. For comparison, datasets representing other rock types have been gathered from the literature cited.
Brabec, Marek, Šimáček, Roman
openaire   +2 more sources

MWD technique to estimate the uniaxial compressive strength of rocks

AIP Conference Proceedings, 2020
The measurement of mechanical properties of rocks is an essential task to be carried out during the projects involving the rock engineering activities such as civil constructions, tunneling, excavations etc. Although the quantification of uniaxial compressive strength in the laboratory is much faithful, the availability of rock samples and their ...
C. R. Lakshminarayana, Anup Kumar Tripathi, Samir Kumar Pal   +2 more
openaire   +1 more source