Authors: V.V. Sinoviev, P.I. Nikolaev, A.V. Utyupin, I.S. Kuznetsov, P.V. Grechishkin

Title of the article: Simulation modeling of the organization of work to reduce gas dynamic hazard in coal seams during the conduct of preparatory works

Year: 2025, Issue: 6, Pages: 157-170

Branch of knowledge: 2.8.8 Geotechnology, mining machines

Index UDK: 004.942, 622.3

DOI: 10.26730/1999-4125-2025-6-157-170

Abstract: The article considers options for organizing work during preventive measures to reduce the gas-dynamic hazard of a coal seam using a seismoacoustic emitter in the technology of conducting mining by a selective action combine. The proposed seismoacoustic impact is implemented in wells drilled in a degassed coal massif by generating "selected" frequencies, which allows developing the process of crack formation and, as a consequence, changing its stress-strain state, intensifying gas outflow from cracks in the massif. One of the options provides for preventive degassing of the seam using the technology of seismoacoustic impact from two control boreholes drilled during the first repair and preparatory shift, when no mining operations are carried out. The second option proposes to carry out seam degassing activities additionally during the third working drift shift, which, on the one hand, can contribute to additional degassing and increase the speed of workings by reducing the measures to eliminate emission hazardous zones, and on the other hand, reduce the speed of workings. The problem of studying the efficiency of the designated options for organizing works on preventive degassing of a coal seam is solved. To solve the problem, the simulation modeling method was used with the Russian software product GPSS Studio. A model was created that displays the processes of the heading cycle for the destruction and loading of rock mass, working support, conveyor extension, delivery of materials and takes into account the probabilistic nature of gas emission processes and the efficiency of measures for preventive degassing of the coal seam. Simulation modeling of the organization of works during the execution of a mine working in a coal mine was performed for 16 shifts. The efficiency indicator was determined to be the speed of workings. The results of simulation experiments on the study of the influence of additional measures on preventive degassing on the speed of the conducted development are presented. The boundaries of the area of effective application of measures on preventive degassing of the seam using a seismoacoustic emitter are determined.

Key words: coal mine mine workings work organization simulation modeling decision making

Receiving date: 22.09.2025

Approval date: 15.11.2025

Publication date: 22.12.2025

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