Development status and prospect of geological guarantee technology for intelligent coal mining in China

In the face of the energy revolution and industrial change in the new era, intelligent coal mining is the only way to achieve high-quality development of the coal industry. Intelligent coal mining has endowed the coal mine geological guarantee system with new connotations and promoted the higher-level development of coal mine geological guarantee technology. The significance of the geological guarantee system in the entire process of coal mining is systematically analyzed. The research and application status of surface, borehole, and “four-while” detection technology is reviewed in detail. The key technologies and development progress of intelligent geological assurance are introduced, and the future development direction of intelligent geological guarantee systems in China is comprehensively considered. High-precision detection results are the basis of geological guarantee. Based on conventional three-dimensional (3D) seismic exploration technology, 3D seismic high-precision imaging methods, intelligent identification methods of geological structures, intelligent inversion of stratum parameters, joint interpretation of reflected and diffracted waves for small-scale geological anomalies, and key technologies of underground exploration, which provide high-precision detection results for geological guarantee, are investigated. In terms of the construction of dynamic geological models, the dynamic detection technology of coal–rock interface with mining based on air-coupled radar has been proposed, and the significance of an online monitoring system is discussed. Based on the large amount of exploration data, the real-time data processing and visualization software and dynamic update method of the 3D geological model are established. This study systematically classified the key technologies of coal mine geological guarantee, specified the future direction of intelligent geological guarantee, and provided a reference for the development of intelligent mining geological assurance systems in coal mines.