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Fracture of Structured Rocks and Materials in Nonuniform Stress Fields

  • ROCK FAILURE
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Journal of Mining Science Aims and scope

Abstract

The article reports the experimental data on brittle rock strength from the bending tests of beams and from diametrical fracture of disk specimens with an axial hole. The author uses the nonlocal fracture approach and compares the strength from the tests with the tensile strength of rocks. It is shown that the different geometry fracture tests allow determining the structural parameter of a medium.

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Funding

This study was supported by the Foundation for Basic Research, project no. AAAA-A17-117122090002-5.

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Authors and Affiliations

  1. Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, 630091, Novosibirsk, Russia

    V. P. Efimov

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  1. V. P. Efimov
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Correspondence to V. P. Efimov.

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Russian Text ©The Author(s), 2020, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2020, No. 4, pp. 29-36.

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Efimov, V.P. Fracture of Structured Rocks and Materials in Nonuniform Stress Fields. J Min Sci 56, 529–535 (2020). https://doi.org/10.1134/S1062739120046824

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  • DOI: https://doi.org/10.1134/S1062739120046824

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