The open stope method is applicable to deposits with stable ore and rock and the stope is allowed to have a relatively large exposed area within a certain period of time. In its process there are two phases——stope room and pillars. The stope room is always open with the pillars and surrounding rock naturally supporting the goaf. With the gradual improvement of resource utilization and safe production requirements, many mines are gradually optimizing the mining process and applying the empty field backfilling method for the purpose of safe treatment of underground goaf and the recovery of high-grade pillars.
Fot the open stope mining method, the popular ones are the stope and pillar mining methods, the shrinkage mining methods, the subsection mining methods and the stage mining methods.