What are the major problem immediately after stoping/ development blast in an underground metal mine?

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Michael Issigonis

Caving of the surrounding rocks. Depends on the stability of these rocks, how many fractures and faults they have.

If you are deep inside the Earth, a blast may trigger rock bursts into the new opening.

Santharam Adibhatla

Check the fragmentation of the blasted muck pile. Check the roof and side wall and support pillar condition for any overbreak. If the strata conditions are favorable, advance development/ stoping operations with safety.