RISK FACTORS AFFECTING LONGWALL MINING SYSTEM OPERATORS IN UNDERGROUND COAL MINES AND THEIR COMPREHENSIVE MONITORING
- Authors
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Jumanazarov Shahzod Shonazar o‘g‘li
Senior Lecturer, Department of Life Safety, Tashkent State Technical University
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- Keywords:
- underground coal mining longwall mining system operator geotechnical hazards gas monitoring respirable dust mine microclimate occupational safety integrated monitoring
- Abstract
- This study examines occupational health and safety hazards affecting operators of longwall mining systems in underground coal mines using documentary analysis. Its objective is to systematize geotechnical, gaseous, dust-related, microclimatic, and equipment-related hazards within an integrated framework and to develop a practical model for their monitoring. The lithological description of the Shargun mine, provisional expert assessments, and organizational and technical measures contained in the source material were compared with a publicly available sanitary regulation and publications of the International Labour Organization (ILO) and the National Institute for Occupational Safety and Health (NIOSH). The analysis demonstrated the importance of distinguishing a rock-strength coefficient from quantities measured in pressure units, refraining from treating expert-derived ranges of roof-fall risk as statistically established probabilities, and differentiating the toxicological and explosion-related dimensions of gas hazards. A combined assessment of temperature, relative humidity, and air velocity is substantiated as an alternative to a universal “optimal” microclimatic range. An integrated monitoring matrix is proposed linking each monitored parameter to its measurement location, monitoring schedule, and corresponding response measures. The findings constitute an analytical framework requiring validation under actual mining conditions.
- References
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