Block caving depends on propagation of rock breakage and cave movement. Induced blasting can help initiate or improve caving when natural breakage is inadequate. Thus B, rather than the other listed stoping methods.
More Mining Methods questions
GATE 2021 MN Q54– Blast fragments have mean-size parameter 60 cm and uniformity index 1.25. Using the…
GATE 2021 MN Q56– A stowing slurry contains 35% sand by volume. Sand specific gravity is 2.6. Find sand…
GATE 2026 MN Q25– A20 m thick orebody dips75°. Both ore and host rock are strong, and production drilling…
GATE 2026 MN Q57– A dragline bucket holds20 m³ with fill factor0.9. Digging/filling takes20 s, total…
GATE 2026 MN Q59– The cut-and-fill stope dimensions are shown. Pillars are4×4 m, separated by clear13 m…
GATE 2026 MN Q61– A bord-and-pillar panel has24 pillars of40×40 m centre-to-centre spacing,4 m galleries…