THE METHOD OF CALCULATING COMPRESSIVE STRENGTH OF THE TRUNCATED CONICAL ROCK SAMPLES AT A CONSTANT CONTACT SHEAR STRESS

Details

Parent Category: Geo-Technical Mechanics, 2013

Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 108

UDC 622.28, 622.831

D.L. Vasilyev, Ph. D. (Tech.), Scientific Associate,
Yu.Ye. Polyakov, Doctoral Student, Engineer
(IGTM NAS of Ukraine)

Yu.A. Kostandov, Ph. D. (Phys.-Math.), Senior Researcher,
L.Ya. Lokshina, Scientific Associate
(V.I. Vernadsky TNU)

Abstract. The stress-strain state of a rock sample of truncated conical shape at its uniaxial compression is studied. The method for calculating the ultimate strength of the samples truncated-cone shape under uniaxial compression is developed, and we get the expression for the calculation of their ultimate strength. The influence of internal friction of the material and contact friction on the load application surface on the limit stress in the sample is taken into account. The relationship between the cone angle and the ultimate strength of the truncated-cone shape samples has been established. A comparison of the obtained results with experimental data showes their satisfactory conformity.

Keywords: contact, shear, strain, fracture sample, truncated-cone shape

References

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Vasilyev Dmitriy Leonidovich, Candidate of Technical Sciences (Ph. D.), Researcher, Researcher in Department of Elastomeric Component Mechanics in Mining Machines, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine

Polyakov Yuriy Evgenevich, Doctoral Student, Engineer in Department of Rock Breaking Problems, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Kostandov Yuriy Arshavirovich, Candidate of Physics and Mathematics (Ph. D.), Senior Researcher, Principal Researcher in SRI Department of Geodynamics, V.I. Vernadsky Taurida National University (V.I. Vernadsky TNU), Simferopol, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Lokshina Lyudmila Yakovlevna, Researcher in SRI Department of Geodynamics, V.I. Vernadsky Taurida National University (V.I. Vernadsky TNU), Simferopol, Ukraine

 

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