GEOTECHNOLOGY


Original Paper

 

UDC 551.2:622.271.272 © L.D. Pavlova1 , V.N. Fryanov1 , S.M. Nikitenko2 , 2024

ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2024, № 11S, pp. 146-151

DOI: http://dx.doi.org/10.18796/0041-5790-2024-11S-146-151

Title

FORECASTING THE STABILITY OF MINE WORKINGS DURING THE DEVELOPMENT OF HARD-TO-RECOVER RESERVES IN THE ZONE OF MUTUAL INFLUENCE OF OPEN AND UNDERGROUND DEVELOPMENTS

 

Authors

L.D. Pavlova1 , V.N. Fryanov1 , S.M. Nikitenko2

1 Siberian State Industrial University, Novokuznetsk, 654007, Russian Federation

2 Federal Research Center for Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation  e-mail: ld_pavlova@mail.ru

Authors Information

Pavlova L.D. – Doctor of Engineering Sciences, Professor, Head of the Department of Applied Mathematics and Computer Science, Siberian State Industrial University, Novokuznetsk, 654007, Russian Federation, e-mail: ld_pavlova@mail.ru

Fryanov V.N. – Doctor of Engineering Sciences, Professor of the Departments of Geotechnology, Siberian State Industrial University, Novokuznetsk, 654007, Russian Federation

Nikitenko S.M. – Doctor of Economic Sciences, Associate Professor, Chief Researcher of the Laboratory of Coal Engineering, Federal Research Center for Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, 650065, Russian Federation, e-mail: nsm.nis@mail.ru

Abstract

The patterns of changes in the stability of underground workings and coal mines have been revealed, taking into account the influence of technological explosions during open-pit mining of coal seams. A sinusoidal form of dependence of the oscillation of the points of the rock mass under the influence of natural and man-made seismic waves is proposed. The dependence parameters are proposed to be set based on the results of monitoring microseismic events using GITS sensors. In order to prevent dangerous industrial situations in the form of collapse of damaged roof rocks, destruction of coal pillars and coal seam in the excavation panel, based on the results of modeling, it is proposed to predict geomechanical and geodynamic processes and optimize schedules for blasting operations at sections and movement of faces of treatment and preparatory workings at coal mines.

Keywords

Open-pit mining, underground workings, rock destruction, seismic events, technological explosions, hard-to-recover reserves.

References

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Acknowledgements

The article was prepared with the financial support of the Ministry of Education and Science of Russia within the framework of the integrated scientific and technical program of the full innovation cycle, approved by the Order of the Government of the Russian Federation as of 11.05.2022 № 1144-r (Agreement № 075-15-2022-1190 as of 27.09.2022).

For citation

Pavlova L.D., Fryanov V.N., Nikitenko S.M. orecasting the stability of mine workings during the development of hard-to-recover reserves in the zone of mutual influence of open and underground developments. Ugol’. 2024;(11S):146-151. (In uss.). DOI:10.18796/0041-5790-2024-11S-146-151.

Paper info

Received September 15, 2024

Reviewed October 21, 2024

Accepted October 31, 2024

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