UNDERGROUND MINING
Original Paper
UDC 622 © D.F. Zayatdinov, I.P. Trandin, A.S. Pozolotin, D.I. Michurin, 2023
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2023, № 4, pp. 31-36
DOI: http://dx.doi.org/10.18796/0041-5790-2023-4-31-36
Title
EXPERIENCE OF USING ACOUSTIC SURVEYS TO MONITOR THE STRESS-AND-STRAIN STATE OF THE ROCK MASS
Authors
Zayatdinov D.F.1, Trandin I.P.2, Pozolotin A.S.3, Michurin D.I.4
1ALZAMIR Research and Production Association, Kemerovo, 650056, Russian Federation
2Mezhegeyugol Coal Company, Kyzyl, 667007, Russian Federation
3NIC-IGD LLC, Kemerovo, 650000, Russian Federation
4MC Kolmar LLC, Neryungri, 678960, Russian Federation
Authors Information
Zayatdinov D.F., Director General, e-mail: damir.zayatdinov@yandex.ru
Trandin I.P., Director General, e-mail: igor.trandin@evraz.com
Pozolotin A.S., Director General, e-mail: pozalex@mail.ru
Michurin D.I., Chief Technologist of the Inaglinskaya Mine, Inaglinskiy Mining and Processing Division, e-mail: michurin.d@koimar.ru
Abstract
The mining of coal seams using the board-and-pillar system is hampered by a number of factors associated with complex mining and geological conditions. Each condition has its individual mining system that takes into account mining and hauling equipment, ways to control and/or support the roof, and other complicating factors. The main factor to be taken into account when developing the the board-and-pillar process flowsheet is to manage the state of the rock mass when the stress-and-strain state of the rock mass changes alongside with the mining activities. One of the ways to timely control and monitor the changes in the stress-and-strain state of the rock mass is acoustic sounding.
This article describes the experience of conducting geophysical surveys using the acoustic sounding method to control the stress-and-strain state of the rock mass in underground mine workings in mines of LLC "UK Mezhegeyugol" and "Inaglinskaya" JSC "Inaglinsky GOK" using the RIPAS intrinsically safe portable acoustic signal recorder (RIPAS Recorder). The purpose of the acoustic surveys is to identify rock zones with varying degrees of fracturing and stress in the roof and walls of the underground mine workings. Fracture maps were produced based on the survey results.
Keywords
Monitoring, Acoustic sounding, Fracturing, Weakened interlayer contacts, Stressed state of the rock mass.
References
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For citation
Zayatdinov D.F., Trandin I.P., Pozolotin A.S. & Michurin D.I. Experience of using acoustic surveys to monitor the stress-and-strain state of the rock mass. Ugol’, 2023, (4), pp. 31-36. (In Russ.). DOI: 10.18796/0041-5790-2023-4-31-36.
Paper info
Received February 28, 2023
Reviewed March17, 2023
Accepted March 27, 2023
