Abstract
The possibility of application of the gradient approach to rock strength estimation is considered in the case when the mechanical properties of the rocks change as a result of stress concentration close to rock structure defects, cavities, and mine workings. A criterion of shear crack appearance is proposed, and expressions for the critical stresses are obtained.
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References
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Additional information
Institute of Mining of the North, Siberian Branch, Russian Academy of Sciences, Yakutsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 54–60, July–August, 1999.
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Suknev, S.V., Novopashin, M.D. Gradient approach to rock strength estimation. J Min Sci 35, 381–386 (1999). https://doi.org/10.1007/BF02562468
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DOI: https://doi.org/10.1007/BF02562468