关键词: 隐蔽致灾因素, 物探, 钻探, 风险评价

Abstract: In order to effectively prevent and resolve major safety risks in mines，and to address the identification and risk control of hidden disaster causing factors in Longqiao Iron Mine，geophysical explora⁃ tion，drilling，3D laser scanning and other technical means are used to conduct a comprehensive survey of hidden disaster causing factors in the production area，planning area and other areas of the mine，covering goaf，geological structure，water sources and channels，ground pressure activity areas，fire areas/high-tem⁃ perature abnormal areas，etc. By comprehensively analyzing the census results，the risk matrix rating method is used to evaluate the risks of disasters in mines，and corresponding disaster risk control measures are pro⁃ posed. The census results show that there are incomplete filling areas in the large voids caused by the col⁃ lapse method in the early stage，and it is necessary to strengthen filling management and real-time monitor⁃ ing；The southeastern fault structures and fractured water rich areas in the mining area pose a significant risk of water hazards，and it is necessary to strengthen advanced water exploration and grouting sealing；The deep mineral rock mass exhibits a weak tendency towards rock burst，but the overall ground pressure activi⁃ ty is stable；The ore has low spontaneous combustion and a complete fire protection system. By comprehen⁃ sively applying various census methods and risk assessment techniques，hidden disaster causing factors in mines have been effectively identified and controlled，and the level of mine safety production management has been improved.

Key words: hidden disaster causing factors, geophysical prospecting, drilling, risk assessment