Technology of Rock Destruction by Combined Explosion-Mechanical Load

Oleg M. Terentiev, Pavlo V. Gontar


Background. Rock drilling is characterized by an energy capacity of more than 120 kWh/m3. This is due to the fact that about 90 % of the energy is expended on the “preparation” of rocks for destruction. This study proposes to combine explosive and mechanical loads to reduce specific energy consumption of rock destruction.

Objective. The aim of the paper is energy effective technology development for rock destruction by combined explosive-mechanical loads.

Methods. Analytical studies; regression analysis; math modeling; experimental research; technical and economic analysis.

Results. Specific energy decreasing for explosive-mechanical rock drilling by 4–16 % was experimentally proved.

Conclusions. As a result of the implementation of explosive-mechanical rock drilling on the created full-sized experimental device, the efficiency coefficient increased from 77 to 80 %.


Rock drilling; Explosive-mechanical drilling; Energy efficiency; Combined load; Recoil


O.V. Derevyanko, “The analysis of quality and technologies of open cast mining in Zhytomyr region”, Visnyk ZhDTU, no. 4 (47), pp. 201–2005, 2008 (in Ukrainian).

I.A. Tanhaiev, Energy Consumption of Useful Minerals Extraction and Processing Processes. Moscow, SU: Nedra, 1986 (in Russian).

P.A. Stepyn, Strength of Materials. Moscow, SU: Vysshaia Shkola, 1988 (in Russian).

O.M. Terentiev et al., “Energetic parameters of recoil during explosion-mechanical drilling”, Naukovi Visti NTUU KPI, no. 5, pp. 17–23, 2016 (in Ukrainian). doi: 10.20535/1810-0546.2016.5.71981

O. Terentiev et al., “Mechanism of creating the prefracture zone of rock formations with magnetic and hydrocavitation load”, Metallurgical and Mining Industry, no. 4, pp. 353–355, 2015.

O.M. Terentiev and I.M. Strelsova, “Energy intensity and specific surface energy of rock breaking by magnetic hydrocavitation loading”, Visnyk NTUU KPI. Ser. Girnytstvo, no. 28, pp. 29–35, 2015 (in Ukrainian).

S.P. Shevchuk et al., “Analytical study of rock cutting mechatron vibration system by flat auger tools”, Naukovyi Visnyk NHU, no. 3, pp. 29–34, 2016.

O.A. Temchenko, “Efficiency estimation for open-cast mining technology from the position of energy intensity”, Actualni Problemy Ekonomiky, no. 9, pp. 250–257, 2015 (in Ukrainian).

A.S. Andreev et al., Physics of the Explosion. Moscow, Russia: Fizmatlit, 2004, (in Russian).

A.A. Vovk et al., The Patterns of the Soil and Rock Deformation under Dynamic Loads. Kyiv, Ukraine: Institute of Hydromechanics of NASU, 1996 (in Russian).

W.P. Walters and J.A. Zukas, Fundamentals of Shaped Charges. New York: John Wiley&Sons, 1989.

V.E. Fortov, “High-pressure shock waves and extreme matter state”, Uspehi Fizicheskih Nauk, no. 4, pp. 347–368, 2007 (in Russian). doi: 10.3367/UFNr.0177.200704c.0347

G.G. Kashkaradze, Mechanical Rock Destruction. Moscow, Russia: Moscow State Univ. Publ., 2004 (in Russian).

A.V. Chigarov. Crystallographic and Crystallochemical Database for Minerals and Structural Analogs [Online]. Available:

L.P. Feoktistov, “Thermonuclear detonation”, Uspehi Fizicheskih Nauk, no. 11, pp. 1247–1255, 1998 (in Russian).

T.D. Golf-Raht, Fundamentals of Oilfield Geology and the Development of Fractured Reservoirs. Мoscow, SU: Nedra, 1986 (in Russian).

GOST Style Citations



Copyright (c) 2017 Igor Sikorsky Kyiv Polytechnic Institute

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.