Research and engineering practice of gas control technology system with hole instead of roadway

To enhance the efficiency and effectiveness of coal seam gas control,this study aims to shift the focus from reactive to proactive governance strategies. We summarize the technology system and application outcomes of using boreholes instead of roadways for gas control,drawing on theoretical analysis,laboratory experiments,and field practices. By defining the concept of gas control via boreholes,we categorize five types of such technologies,propose conditions for selecting each type,and outline the implementation requirements and key technical parameters for field application. This has resulted in a well-rounded technical system for gas control using boreholes. Field practices demonstrate that this approach enables accurate regional outburst risk prediction, effective prevention measures, mining pressure relief, and efficient gas drainage from adjacent layers. The feasibility and practicality of using boreholes for gas control have been confirmed. Our findings provide valuable insights and guidance for accelerating the adoption and promotion of borehole-based gas control technologies in the industry.