School of Engineering and Technology China University of Geosciences(Beijing) Beijing 100083 ChinaKey Laboratory of Deep Geodrilling Technology Ministry of Land and Resources China University of Geosciences(Beijing) Beijing 100083 China;
School of Engineering and Technology China University of Geosciences(Beijing) Beijing 100083 ChinaKey Laboratory of Deep Geodrilling Technology Ministry of Land and Resources China University of Geosciences(Beijing) Beijing 100083 China;
School of Engineering and Technology China University of Geosciences(Beijing) Beijing 100083 ChinaKey Laboratory of Deep Geodrilling Technology Ministry of Land and Resources China University of Geosciences(Beijing) Beijing 100083 China;
School of Engineering and Technology China University of Geosciences(Beijing) Beijing 100083 ChinaKey Laboratory of Deep Geodrilling Technology Ministry of Land and Resources China University of Geosciences(Beijing) Beijing 100083 China;
Longwall goaf; Gas explosion; Air quantity; Gas emission; Hazard zone; Quantitative risk analysis;