Optimization of long-term mine production scheduling in open pit mines deals with the management of cash flows, typically in the order of hundreds of millions o
In the early 1990 s, the Foundation for Science and Technology of Rio Grande do Sul State(CIENTEC)developed a pioneering study in Brazil, related to the simulta
When gob-side entry retaining is implemented in deep coal seams threatened by rockburst, the cement-based supporting body beside roadway will bear greater roof