Original paper

UDC 622.817.3 © V.Yu. Derevyansky, V.V. Denga, 2025

ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2025, №11, pp. 104-107

DOI: http://dx.doi.org/10.18796/0041-5790-2025-11-104-107

CALCULATION OF THE WEIGHT-AND-DIMENSIONAL CHARACTERISTICS OF AN EXPLOSIVE-DRIVEN BARRIER FOR ISOLATION OF EXPLOSIONS OF FIREDAMP OR DUST-AIR MIXTURES IN COAL MINES

Authors

V.Yu. Derevyansky, V.V. Denga

GBU MAKNII, Makeyevka, 286132, DPR, Russian Federation e-mail: maknii.niot@mail.ru

Authors Information

Derevyansky V.Yu. – Senior Research, GBU MAKNII, Makeyevka, 286132, DPR, Russian Federation, e-mail: maknii.niot@mail.ru

Denga V.V. – Head of the Laboratory, GBU MAKNII, Makeyevka, 286132, DPR, Russian Federation, e-mail: makniivrivm@mail.ru

Abstract

The most common means for isolation of firedamp and dust air mixtures explosions in coal mines of the Donetsk People’s Republic are stone-dust barriers and water shelf barriers. Their poor efficiency was revealed by accidents occurred. The state budgetary institution MAKNII has been developing design assignment for the prototype model of an explosive-driven barrier which contains fire-extinguishing agent inside the flexible casing of the barrier which spraying is carried out by use of the detonating cord. The procedure of calculation of weight-and-dimensional characteristics of this barrier has been developed. The calculation of the mass of the extinguishing agent reflects the extent of the protected mine working, the minimal concentration of the fire-extinguishing agent which secures the extinguishment of fire front in one cubic meter of the volume as well as reserve coefficient of the fireextinguishing agent in the barrier, which depends on the location of the barrier in the working.

Keywords

Coal mine, mine working, explosion, firedamp and dust-air mixture, explosion isolation, barrier, fire-extinguishing agent, inert dust.

References

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For citation

Derevyansky V.Yu., Denga V.V. Calculation of the weight-and-dimensional characteristics of an explosive-driven barrier for isolation of explosions of firedamp or dust-air mixtures in coal mines. Ugol’. 2025;(11):104-107. (In Russ.). DOI: 10.18796/0041-5790-2025-11-104-107.

Paper Info

Received October 1, 2025

Reviewed October 18, 2025

Accepted October 30, 2025