How to choose economical and reasonable mining methods for different mines?

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 Mining method is the core of mining. It can be said that the choice of mining method determines the operation of the entire mining system. The selection of a correct and reasonable method of mining for a mine plays a decisive role in the future production and operation of the mine. Inferiority determines the mining efficiency, production scale, ore recovery rate, and ore quality of the mine. The method of mining is restricted by many factors, such as the geographical location of the ore body, the stability of the ore rock, the type of ore, the taste of the ore, and the depth of burial.



Although the burial elements of mineral deposits vary widely, in general, some rules can be summarized for the selection of mining methods, which are mainly divided into the following four situations:

1. If the buried depth of the ore body is shallow, and the extension depth is also shallow, all deposits are mined in open pit.

2. If the buried depth of the ore body is very deep, underground mining is adopted for all deposits.

3. If the burial depth of the upper part of the ore body is shallow, and the extension depth is very deep, the upper part of the ore bed adopts open-pit mining and the lower part adopts underground mining. In this case, in the middle of production, a transition period from open-pit mining to underground mining is needed.

4. The upper part of the ore body has a deeper buried depth, and the extension depth is shallower, all of which may be open-pit mining or all underground mining.

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