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Some causes of the scatter of the strengths of rock specimens estimated during tests under uniaxial compression

  • Rock Mechanics and Rock Pressure
  • Published:
Soviet Mining Aims and scope

Summary

  1. 1.

    When rock specimens are tested under uniaxial compression, the scatter of results is a function of the structure, and can be expressed by a relation between the index under study and a factor which determines the strength of the rock.

  2. 2.

    To analyze the structure of the scatter we propose a general form of the mean value, σav=σmaxp(δ).

  3. 3.

    We propose a generalized homogeneity index ω, which is a more sensitive expression of the degree of homogeneity.

  4. 4.

    As a first approximation we propose that rocks should be classified according to their degree of homogeneity by means of this index ω.

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Authors
  1. I. I. Protopopov
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Additional information

VNIMI, Leningrad. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 45–52, July–August, 1967.

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Protopopov, I.I. Some causes of the scatter of the strengths of rock specimens estimated during tests under uniaxial compression. Soviet Mining Science 3, 357–362 (1967). https://doi.org/10.1007/BF02497559

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  • DOI: https://doi.org/10.1007/BF02497559

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