Research on Governance of Potential Safety Hazard in Da’an Mine Goaf

In order to eliminate the potential safety hazard of lower part mining caused by mine goaf and ensure the safety of workers and equipments, treatment measures on mine goaf should be carried out as soon as possible. Through comparison between programs and numerical simulation, comprehensive treatment solution including subarea blasting caving and mine goaf closing is chosen, meanwhile recycling parts of resources is carried, which may achieve safe, economic and high effective purpose and also lay the foundation for enterprise in continued production. The treatment mode of potential safety hazard in Da’an mine goaf can provide reference for similar mine goaf.