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Original Paper

UDC 622.23.2 © A.A. Sobolev, A.A. Galimyanov, 2022

ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2022, № 2, pp. 22-25

DOI: http://dx.doi.org/10.18796/0041-5790-2022-2-22-25



Technical and Economical Analysis of Drilling and Blasting Parameters Depending on the Depths Increase in Coal Mining



Sobolev A.A.1, Galimyanov A.A.1

1Khabarovsk Federal Research Center, Khabarovsk, 680000,Russian Federation


Authors Information

Sobolev A.A., Leading Research Associate, Institute of Mining,e-mail: sobolev@khfrc.ru

Galimyanov A.A., Senior Research Associate, Institute of Mining, e-mail: azot-1977@mail.ru



The authors of the article assessed the impact of the depth of open-pit coal mining on the change in the main parameters of drilling and blasting operations as well as their costs. At the “Bureinsky” and “Pravoberezhny” coal open-pits which belong to “Urgalugol” enterprise, it was investigated that as long as mining operations going deeper, the physical and mechanical properties of coal seams and in-situ rocks change, geological and organizational conditions of mining become significantly more complicated. These changes dramatically affect the actual parameters of the D&B, which ultimately leads to an increase in production and operation costs. In this regard, there significant discrepancies arise in the designed and actual budgets for overburden removal and mining operations. To calculate, adjust and justify the main production parameters, it is proposed to use the indicator of the actual weighted average number of the D&B operating bench, which is calculated from the volume of the blasted rock mass on each of the benches. It is established that the corresponding weighted average number of the bench, for a certain period of time, has a direct relationship with the specific operating costs, powder factor as well as the volume of rock blasted per 1 meter of the blast hole. The use of this indicator significantly simplifies the calculation and analysis of the main design and actual engineering parameters, makes it convenient to justify the appropriate rational parameters, allows to predict changes and fluctuations in the economic indicators of the D&B process.



Open-cast mining, Coal open-pit, Drilling and blasting operations, Mining depth, Rocks, Main parameters, Production costs.


1. Zhang M., Shimada H., Sasaoka T. et al. Evolution and effect of the stress concentration and rock failure in the deep multi-seam coal mining. Environmental Earth Sciences, 2014, Vol. 72, (3), pp. 629-643.

2. Haldar S.K.Introduction to Mineralogy and Petrology (Second Edition), 7 August 2020, pp. 187-268.

3. Azarfar B., Ahmadvand S., Sattarvand J. et al. Stability analysis of rock structure in large slopes and open-pit mine: numerical and experimental fault modeling. Rock Mechanics and Rock Engineering, 2019, Vol. 52, (12), pp. 4889-4905.

4. Bryuzgina N.I. & Tuezova N.A. On laws of changes in rock porosity and density with their occurrence depth for sediments of the West Siberian Lowland. Trudy Sibirskogo nauchno-issledovatel?skogo instituta geologii, geofiziki i mineral?nogo syr?ya, 1967, (62), pp. 134-140. (In Russ.).

5. Avchyan G.M., Matveenko A.A. & Stefankevich Z.B. Petrophysics of sedimentary rocks in deep subsurface conditions. Moscow, Nedra Publ., 1979, 224 p. (In Russ.).

6. Lysakov B.A. & Zubarev Yu.P. Example of the occurrence depth effects on petrographic and mechanical properties of sandstones. Izvestiya vysshih uchebnyh zavedenij, Geologiya i razvedka, 1968, (1), pp. 18-22. (In Russ.).

7. Mohammad Babaei Khorzoughi & Robert Hall. Rock fracture density characterization using measurement while drilling (MWD) techniques. International Journal of Mining Science and Technology, 4 January 2018.

8. Galimyanov A.A. Improving the efficiency of explosive ripping of frozen rocks. Gornyj informacionno-analiticheskij byulleten?, 2015, (S1-1), pp. 433-438. (In Russ.).

9. Sekisov G.V. & Sobolev A.A. Rational way of mining narrow vein steeply dipping ore deposits. Gornyj informacionno-analiticheskij byulleten?, 2012, (11), pp. 38-45. (In Russ.).

10. Ebrahim F. Salmi & Ewan J. Selles. A review of the methods to incorporate the geological and geotechnical characteristics of rock masses in blastability assessments for selective blast design. Engineering Geology, 15 December 2020.

11. Abbaspour H., Drebenstedt C. & Maghaminiket A. Optimized design of drilling and blasting operations in open pit mines under technical and economic uncertainties by system dynamic modelling. International Journal of Mining Science and Technology, 2018, Vol. 28, (6), pp. 839-848.

12. Popov V.N., Silchenko O.B. & Paramonova M.S. On changes in physical and mechanical properties of rocks with occurrence depth. Gornyj informacionno-analiticheskij byulleten?, 2011, (5), pp. 108-117. (In Russ.).

13. Viktorov S.D., Goncharov S.A., Iofis M.A. et al. Mechanics of rock movement and breaking. Moscow, RAN Publ., 2019, 360 p. (In Russ.).

14. Ozdemir B. & Kumral M. A system-wide approach to minimize the operational cost of bench production in open-cast mining operations. International Journal of Coal Science & Technology, 2019, Vol. 6, (1), pp. 84-94.

15. Dobrovolsky A.I., Galimyanov A.A., Shevkun E.B. et al. Combined mining of adjacent gently sloping coal seams in formations of various strength and frozen formations. Ugol, 2015, (12), pp. 34-38. (In Russ.). URL: http://www.ugolinfo.ru/Free/0122015.pdf (accessed 15.01.2022).

16. ?elebi N. An equipment selection and cost analysis system for open pit coal mines. International Journal of Surface Mining, Reclamation and Environment, 1998, Vol. 12. No. 4. P. 181-187.


For citation

Sobolev A.A., Galimyanov A.A. Technical and Economical Analysis of Drilling and Blasting Parameters Depending on the Depths Increase in Coal Mining.Ugol’, 2022, (2), pp. 22-25. (In Russ.). DOI: 10.18796/0041-5790-2022-2-22-25.

Paper info

ReceivedDecember 18, 2021

Reviewed December 28, 2021

Accepted January 18, 2022


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