Yeah, its mandatory by law (Mining Regulations) for every mine to have more than one entry/exit. The main purpose for having more than one entry/exit is: * to serve as escape routes during emergencies. read more
Yeah, its mandatory by law (Mining Regulations) for every mine to have more than one entry/exit. The main purpose for having more than one entry/exit is: to serve as escape routes during emergencies. to facilitate mechanical ventilation. read more