Characteristics and Evolution Mechanism of Coal and Gas Outburst Disasters

Zuoquan Li; Jiye Quan; Jufeng Zhang; Yadong Xie; Jianjiang Zhang; Zaiquan Miao

doi:10.54691/39zvcr07

Authors

Zuoquan Li
Jiye Quan
Jufeng Zhang
Yadong Xie
Jianjiang Zhang
Zaiquan Miao

DOI:

https://doi.org/10.54691/39zvcr07

Keywords:

Gas Outburst; Disaster Characteristics; Evolution Mechanism; Dynamic Model; Case Study.

Abstract

Coal and gas outburst is a destructive dynamic hazard in coal mining, which seriously threatens the safety of miners' lives and properties and the safety of coal mine production. In order to explore the characteristics and evolution mechanism of coal and gas outburst behavior in depth, this article systematically analyzes the formation mechanism of coal and gas outburst. Through the specific case analysis of coal and gas outburst disasters in a certain mine in Gansu, the key features of outburst behavior are identified. By analyzing the outburst dynamics model and the evolutionary process of outburst, the evolution mechanism of coal and gas outburst is explored. The research results show that coal and gas outburst is a sudden gas dynamic behavior caused by various factors such as geological conditions, strata characteristics, and mining technology. The superposition of tectonic stress concentration zones and gas enrichment zones is prone to trigger dynamic behavior. The research results have important theoretical and practical value for guiding actual production safety.

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