Original paper

UDC 622.23.01: 553.061.4: 620.173.24 © Ch.B. Kongar-Syuryun¹, E.S. Sazankova², M.A. Cherevko³, A.V. Dengaev⁴, 2025
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2025, № 5, pp. 114-117
DOI: http://dx.doi.org/10.18796/0041-5790-2025-5-114-117

A STUDY OF THE STRUCTURAL DEFECTS IMPACT ON THE STRENGTH OF ROCKS

Authors

• Ch.B. Kongar-Syuryun – Postgraduate Student of the Mining Department, Saint Petersburg Mining University, Saint-Petersburg, 199106, Russian Federation, e-mail: kongarsiuiun@gmail.com
• E.S. Sazankova – PhD (Engineering), Associate Professor, Mining Institute, National University of Science and Technology MISIS (NUST MISIS), Moscow, 119049, Russian Federation, e-mail: sazankova.es@misis.ru
• M.A. Cherevko – PhD (Engineering), General Director, Nefteservisnye Resheniya LLC, Saint Petersburg, 190031, Russian Federation, e-mail: Cherevko.MiA@gazprom-neft.ru
• A.V. Dengaev – PhD (Engineering), Associate Professor, Gubkin Russian State University of Oil and Gas, Moscow, 119991, Russian Federation, e-mail: dengaev.a@gubkin.ru

Abstract

Ensuring the functional reliability of mine workings and safety pillars while minimizing the disturbance of the undermined rock mass is the basis for safe coal mining operations. The purpose of this study is to investigate the effects of structural defects on the strength of rocks. It has been established that the crystal failure proceeds stepwise through the formation of the shear and detachment microzones. An equation of the rock-forming minerals state has been obtained with account of their structure. It is proved that formation of objective laws of rock failure excludes the combination of random circumstances.

Keywords

Defect, rock, stress, stress-and-strain state, strength, failure, structure, solid body.

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For citation

Kongar-Syuryun Ch.B., Sazankova E.S., Cherevko M.A., Dengaev A.V. A study of the structural defects impact on the strength of rocks. Ugol’. 2025;(5):114-117. (In Russ.). DOI: 10.18796/0041-5790-2025-5-114-117.

Paper Info

• Received March 14, 2025
• Reviewed April 16, 2025
• Accepted April 26, 2025