Generalization of up-to-date information on correlation dependences of ultimate compressive strength and other strength characteristics of rocks

The compression testing methods effective in Russia and abroad are reviewed with the purpose of correlating the ultimate compressive strength with the other properties of rocks and for expanding research in the area of computer modeling of the ultimate compressive strength. The Russian approach to rock testing differs from the common foreign approach in dimensions of the test specimens. A brief overview of research findings on correlation dependences between the ultimate compressive strength, ultimate tensile strength, contact strength, shearing strength, point load index, Schmidt hardness and the ultrasonic compression wave velocity is presented. The highest correlation is observed in case of the Schmidt hardness, though the connection with the other characteristics is also rather tight. Since the point load index and the Schmidt hardness have found narrow attention in Russia yet, this article offers summary information on these characteristics and their determination. A particular interest lies in reviewing the present-date research in the area of prediction of the ultimate compressive strength values by computer modeling.

Zhabin A. B., Polyakov A. V., Averin E. A., Linnik Yu. N., Linnik V. Yu. Generalization of up-to-date information on correlation dependences of ultimate compressive strength and other strength characteristics of rocks. MIAB. Mining Inf. Anal. Bull. 2022;(6):519. [In Russ]. DOI: 10.25018/0236_1493_2022_6_0_5.

A.B. Zhabin, Dr. Sci. (Eng.), Professor, Tula State University, 300012, Tula, Russia, e-mail: zhabin.tula@mail.ru,
A.V. Polyakov, Dr. Sci. (Eng.), Engineer-Expert, LLC «Expertise of Industrial Safety», 300000, Tula, Russia, e-mail: polyakoff-an@mail.ru,
E.A. Averin, Cand. Sci. (Eng.), Engineer-Designer, LLC «Skyratovsky Experimental Plant», 300911, Tula, Russia, e-mail: evgeniy.averin.90@mail.ru,
Yu.N. Linnik¹, Dr. Sci. (Eng.), Professor, e-mail: yn_linnik@guu.ru,
V.Yu. Linnik¹, Dr. Sci. (Econ.), Professor, e-mail: d0c3n7@gmail.com,
¹ State University of Management, 109542, Moscow, Russia.

A.V. Polyakov, e-mail: polyakoff-an@mail.ru.

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