Roof Fracture Dynamics and Synergistic Control Strategies for Mitigating Coal Mine Gas Disasters in Goaf Regions
摘要
As deep mining becomes the new norm in the mining industry, there remains a gap in the prevention and control technologies for the coupled disasters of coal spontaneous combustion and gas outbursts. This study aims to accurately identify the mechanisms of goaf roof failure in order to predict and prevent gas disasters. By conducting an in-depth analysis of the coupling relationship between goaf roof failure mechanisms and gas disasters, as well as the principles of integrated control technologies, this study proposes a new model for goaf roof failure mechanisms. The accuracy of the model is verified through similar material simulation and numerical simulation experiments. The results indicate that roof failure significantly impacts gas migration. By optimizing the layout of depressurization gas drainage boreholes, the gas extraction rate can be effectively increased, and the amount of drilling work can be reduced. Additionally, this study proposes an integrated control technology based on the coupling of roof failure mechanisms and gas disasters, providing theoretical and technical guidance for the prevention and control of gas disasters in goaf areas. This model not only offers new ideas and methods for identifying and controlling the characteristics of goaf roof failure, gas migration, and gas coupling disasters but also provides theoretical and technical guidance for the prevention and control of gas coupling disasters in goaf areas.