Mechanical point-column type chamber and pillar method
2014
The invention discloses a mechanical point-column type chamber and pillar method which comprises the steps of arranging a stope, setting stoping sequence, carrying out stope preparation cutting, stoping, drilling rock, carrying out roof control, carrying out ore removal and ventilating. The method solves the problem that the upper layer and the lower layer are influenced by each other and constrained by each other in the multilayer ore body mining process, so that the operation interference between the upper layer and the lower layer is small, loss and dilution are effectively controlled, and the production cost is greatly reduced.
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