Preliminary communication

https://doi.org/10.17794/rgn.2023.3.2

DETERMINING THE PERFORMANCE OF EXPLOSIVES FOR BLASTING MANAGEMENT

Maksym Kononenko ; Dnipro University of Technology, Department of Transport systems and energy-mechanical complexes, Yavornytskoho Ave 19, UA-49005 Dnipro, Ukraine
Oleh Khomenko ; Dnipro University of Technology, Department of Mining Engineering and Education, Yavornytskoho Ave 19, UA-49005 Dnipro, Ukraine
Ihor Kovalenko ; Ukrainian State University of Chemical Technology, Department of Technology of Inorganic Substances and Ecology, Haharina ave. 8, UA-49005 Dnipro, Ukraine
Andrii Kosenko ; Branch for Physics of Mining Processes of the M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine, Department of Rock Mass Condition Control, Symphyropilska str. 15, UA-490005, Dnipro, Ukraine
Roman Zahorodnii ; V. Hnatiuk Ternopil National Pedagogical University, Ternopil, Department of Mechanical Engineering and Transport, Ternopil, M. Kryvonosa str. 2, UA-46000, Ukraine
Roman Dychkovskyi ; AGH University of Science and Technology, Faculty of Management, al. Mickiewicza 30, Krakow, 30059, Poland

Abstract

Experimental methods for determining a performance index of explosives are analysed: the methods of a ballistic pendulum, ballistic mortar, a lead block, and according to the volume of soil explosion funnel. It is defined that the determination of a performance index of emulsion explosives (EE) involves a set of significant features connected with a large critical diameter requiring the experiments with large-mass charges and resulting in refusal from the traditional methods of determining a performance index. Analytical methods for calculating an index of relative performance of explosives are analysed. Determination of the performance indices of explosives with the help of analytical methods helps identify considerable differences in the calculation results; in case of emulsion explosives the results are erroneously low at all. It is since analytical methods do not consider the brisant action of emulsion explosives. This paper represents the developed methodology of determining a performance index of explosives according to the degree of detonation velocity. The proposed methodology considers the key energy and detonation characteristics of explosives: heat and volume of the explosion products, density (thickness), and detonation velocity. The use of analytical methodology for calculating a performance index for all explosive types makes it possible to get correct results that are necessary for designing the parameters of drilling and blasting operations.

Keywords

emulsion explosive; drilling and blasting; performance index; energy and detonation characteristics; detonation velocity

Hrčak ID:

307281

URI

https://hrcak.srce.hr/307281

Publication date:

14.8.2023.

Article data in other languages: croatian

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