Although there are opponents and proponents of underground mining, the disadvantages include destruction of land, surface subsidence, abandoned shafts, extensive surface spoil heaps, mine explosions, collapses and flooding. That doesnt incorporate the costly price tag that comes with underground mining. What is a disadvantage of mining
There is also a variety of methods for underground mining. ...... The system has two key advantages over longwall mining: its flexibility and inherent safety. Its major disadvantage is that recovery of the coal resource is only partial, the precise... More details » Get Price Alimak Production Mining, Manroc Developments Inc.
The advantages of this method are: The cost of mining is low because very little drilling and blasting, or timbering is required. The amount of development is small. A large output is possible. Disadvantages: The method is in application to low grade ore of such character that it will cave and disintegrate.
Generally, startup explorers and miners begin with open pit mining because it is cheaper, easier, and safer. Underground method, as the term explains it, is about mining underground and drilling deeper into earths surface. It requires more money that will be spent on drilling, assuring miners safety, and erecting safety centric equipment.