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The applicable conditions of the room and pillar mining method are: (1) the ore body and the surrounding rock are stable; (2) the ore body inclination angle is not more than 30 degrees; that is, the horizontal and gently inclined ore body. (3) Ore bodies with low or low grade ore.
Conditions for use in mining and mining: the thin and extremely thin steep ore body segmentation of the ore and surrounding rock are applicable. Conditions: mediumly stable, inclined, medium thick and thick ore body.
Applicable conditions of the stage mining method: the steep and thick ore body with stable ore and surrounding rock.
The open field mining method can be divided into the following five categories: comprehensive mining method, room and pillar mining method, mining and mining method, stage mining method, and section mining method.