Acoustic and strength properties of physical models of frame and honeycomb mine structures

The article presents the experimental procedure and the results on acoustic and strength properties of physical models of frame and honeycomb underground structures designed at the Research Center for Applied Geomechanics and Convergent Technologies in Mining at NUST MISIS College of Mining. The implemented studies prove efficiency of physical models of frame and honeycomb mine structures in geomechanical studies in nature-like mining technologies. The physical modeling allows studies within a wide range of natural stress state and properties of equivalent materials. Elastic wave velocity measurements are performed on the physical models subjected to fracture. The standard variants of physical models of frame and honeycomb mine structures are developed. It is found that in the honeycomb mine structure models, the highest stability is demonstrated by systems represented by more number of circular voids of smaller diameter. The physical simulation approach has made it possible to calculate stable structural design parameters for the discussed systems, to reveal trouble spots, to identify potential avenues and stages of development of nature-like mining technologies, and, finally, to start a design project.

Leizer V. I., Vysotin N. G., Kosyreva M. A., Shermatova S. S. Acoustic and strength properties of physical models of frame and honeycomb mine structures. MIAB. Mining Inf. Anal. Bull. 2020;(12):54-64. [In Russ]. DOI: 10.25018/0236-1493-2020-12-0-54-64.

The study was supported by the Russian Science Foundation, Project No. 19-17-00034.

V.I. Leizer¹, Graduate Student, e-mail: vlad.leizer@yandex.ru,
N.G. Vysotin¹, Senior Lecturer, e-mail: kalgani@yandex.ru,
M.A. Kosyreva¹, Graduate Student, e-mail: marinkosyreva@gmail.com,
S.S. Shermatova¹, Graduate Student, e-mail: s_shermatova@inbox.ru,
¹ Mining Institute, National University of Science and Technology «MISiS», 119049, Moscow, Russia.

V.I. Leizer, e-mail: prof.eremenko@gmail.com.

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