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Дата издания
15.05.2025Область исследования
Тип исследования
Аннотация (краткое описание)
The problem of eliminating gas contamination in mine workings and reliably forecasting accident probability remains relevant in the coal industry. This article presents scientific and technical developments for managing the aerodynamic parameters of working areas and collapsed rock massifs to combat gas contamination at the production face. The authors propose controlling gas emissions in the working area by regulating air leaks through the mined-out space of the longwall. The study considered the working area as a quasi-network model. Based on this model, theoretical and experimental studies were conducted on air leaks from the longwall and its inflows into the supported ventilation workings. These studies focused on working areas with a direct-flow ventilation scheme in the Karaganda coal basin mines. Numerical experiments were carried out for three methods of gas emission control. As a result, a mathematical model was developed to calculate aerodynamic resistance, taking into account the length of the column, longwall mining, and the distribution of airflow in the mining section (Q1/Q2). This model enables the estimation of the probability of forming an explosive concentration of methane, thus improving safety measures in coal mine operations. ©2025 The authors.DOI
10.18280/ijsse.150503Тип публикаций
Сведения о финансировании
The authors express their gratitude to Dr. J.G.Levitsky, Professor of the Saginov University (Kazakhstan, Karaganda) for his support and assistance at various stages of this research.Данный документ располагается в коллекциях
Международные публикации ученых SU
Scopus