Abstract
Based on the quantitative estimations, it is demonstrated that available classifications of rocks by drillability disagree on the scales. Empirical formulae are obtained to compare the scales depending on uniaxial compressive strength of rocks.
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 53–62, November–December, 2005.
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Tanaino, A.S. Rock classification by drillability. Part I: analysis of the available classifications. J Min Sci 41, 541–549 (2005). https://doi.org/10.1007/s10913-006-0017-8
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DOI: https://doi.org/10.1007/s10913-006-0017-8