Khomenko O.E., Kononenko M.N., Lyashenko V.I. Rationale for Technologies and Facilities for Carrying out Horizontal Mine Workings Using Emulsion Explosives

DOI: 10.18503/1995-2732-2021-19-3-5-15

Abstract

Problem Statement (Relevance). In recent years, emulsion explosives of domestic production became widely introduced. They are safer in operation and surpass TNT-containing explosives in their energy characteristics. This is an urgent task at the present stage of development of the world's mining enterprises. Methods Used. The authors described the technology of a new technological solution for providing the rationale and selecting reasonable parameters for drilling and blasting operations using emulsion explosives during development workings. They included an analysis of the mining and geological conditions of the deposit and the development of stopes using pillar-and-breast systems and backfilling of the worked-out area, the technology of drilling and blasting used when conducting horizontal and inclined (up to 12°) mine workings and theoretical studies, which were carried out using a mathematical modeling method. Novelty. The authors developed a concept of providing the rationale and selecting reasonable parameters of drilling and blasting parameters for horizontal mine workings using high-performance self-propelled equipment and the use of emulsion explosives, as well as taking into account their energy characteristics and physical and mechanical properties of rocks. Result. The use of emulsion explosives of the Ukrainit-P-SA type will make it possible to reduce the number of holes in the working face down to 12% in comparison with the use of the Ammonit No. 6 ZhV explosives. The consumption of explosives, when using a blasting pattern and the Ukrainit-P-SA explosives, will decrease to 6%. These indicators indicate the need for using emulsion explosives of the Ukrainit-P-SA type, when carrying out preparatory and temporary workings by drilling and blasting, as well as the use of high-performance tunneling equipment in tunneling operations. The expected economic potential, obtained as a result of a technical and economic comparison for the main items of cost calculation, indicates the feasibility of introducing the developed technological solution. Practical Relevance. The conducted research contribute to reducing the cost of 1 m of mining to 11%, as well as to saving resources in the production of mining operations and increasing the speed of mining at the Zaporizhzhya Iron Ore Plant private joint stock company (PJSC ZZRK), Ukraine, to 200 m per month. This also contributes to increasing efficiency of extraction of ore raw materials for ferrous and non-ferrous metallurgy.

Keywords

Emulsion explosives, blasting pattern, tunneling equipment, self-propelled drilling rig, load haul dumper, charging installation.

For citation

Khomenko O.E., Kononenko M.N., Lyashenko V.I. Rationale for Technologies and Facilities for Carrying out Horizontal Mine Workings Using Emulsion Explosives. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2021, vol. 19, no. 3, pp. 5–15. https://doi.org/10.18503/1995-2732-2021-19-3-5-15

Oleg E. Khomenko – DrSc (Eng.), Professor of the Department of Mining Engineering and Education, National Technical University Dnipro University of Technology, Dnipro, Ukraine. Email: This email address is being protected from spambots. You need JavaScript enabled to view it..

Maksim N. Kononenko – PhD (Eng.), Associate Professor of the Department of Mining Engineering and Education, National Technical University Dnipro University of Technology, Dnipro, Ukraine. Email: This email address is being protected from spambots. You need JavaScript enabled to view it..

Vasiliy I. Lyashenko – PhD (Eng.), Senior Researcher, Head of the Research Department, State Enterprise Ukrainian Research and Design Institute of Industrial Technology, Zhovti Vody, Ukraine. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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