SURFACE MINING
UDC 622.233.016.25 © O.I. Cherskikh, A.A. Galimyanov, Gevalo K.V., 2022
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2022, № 7, pp. 45-52
DOI: http://dx.doi.org/10.18796/0041-5790-2022-7-45-52
Title
ENHANCING DRILLING AND BLASTING OPERATIONS AT THE SOLNTSEVO COAL STRIP MINE
Authors
Cherskikh O.I.1, Galimyanov A.A.2, Gevalo K.V.2
1"Solntsevsky Coal Mine" LLC, Shakhtersk, 694910, Russian Federation
2Institute of Mining of the Far Eastern Branch of the Russian Academy of Sciences, Khabarovsk, 680000, Russian Federation
Authors information
Cherskikh O.I., PhD. (Engineering), Director, e-mail: cherskikhoi@eastmining.ru
Galimyanov A.A., PhD. (Engineering), Senior Research, e-mail: azot-1977@mail.ru
Gevalo K.V., Engineer, e-mail: igddvo@yandex.ru
Abstract
The issue of reducing the time spent on organizing mass explosions is especially relevant in the intensive development of quarries with the preparation of rock mass for excavation by drilling and blasting, where mining equipment is mainly operated by electric drive. Significant time losses are associated with the organization of the movement of electrical equipment outside the danger zone and back. The publication discusses the main methods of reducing the corresponding time costs, which are based on reducing the average monthly number of explosive days and justifying the reduction of the radius of the danger zone for mining equipment by the spread of individual pieces of rock mass. The article substantiates measures to reduce the risk of negative events associated with the potential threat of damaging factors with an increase in the volume of simultaneously exploding rock mass, including the use of artificial barriers to reduce the seismic impact of the explosion and rational inter-well decelerations.
Keywords
Reduction of explosive days, The volume of the explosive block, The scattering of pieces of rock mass, Artificial antiseismic barriers, Inter-well decelerations.
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Acknowledgments
The studies were carried out using the resources of the Center for Shared Use of Scientific Equipment "Center for Processing and Storage of Scientific Data of the Far Eastern Branch of the Russian Academy of Sciences", funded by the Russian Federation represented by the Ministry of Science and Higher Education of the Russian Federation under project No. 075-15-2021-663.
For citation
Cherskikh O.I., Galimyanov A.A. & Gevalo K.V. Enhancing drilling and blasting operations at the Solntsevo coal strip mine. Ugol’, 2022, (7), pp. 45-52. (In Russ.). DOI: 10.18796/0041-5790-2022-7-45-52.
Paper info
Received May 13, 2022
Reviewed May 31, 2022
Accepted June 23, 2022
