Thursday, June 4, 2020
When passageway modification becomes necessary there are two principal considerations. The safety of the patient, and the overall stability of the passage. Modification must not compromise either of these. For this reason, the "blasting" technique employed is not something that would make interesting television or movie scenes. We focus on minimal pressures designed to crack rock, and not displace it. We can then use wedges to propagate the crack, and partition the rock. In some cases we can forego any blasting, and use the wedges, alone, to crack the rock.