Mining methods can be divided into:
1. Empty field mining method: The use of the stability of the rock itself and the retention of the column for ground pressure management is generally applicable to the ore body with stable mining rock.
2. Caving mining method: The ground pressure management by caving surrounding rock is generally applicable to: the surface is allowed to fall.
3. Filling mining method: Filling the goaf with filling materials for ground pressure management.
1. Empty field mining method: The use of the stability of the rock itself and the retention of the column for ground pressure management is generally applicable to the ore body with stable mining rock.
2. Caving mining method: The ground pressure management by caving surrounding rock is generally applicable to: the surface is allowed to fall.
3. Filling mining method: Filling the goaf with filling materials for ground pressure management.
Relay Fuse,Ignition Relay Fuse,Fuses And Relays,Starter Fuse Relay
Taishan Yuanjin Auto Parts CO., LTD , https://www.yuanjinautoparts.com