Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials.? Mining drilling are used for two main purposes:?
1. exploration drilling which aims to identify the location and quality of a mineral, and ?
2. production drilling, used in the production-cycle for mining.? Underground mining (hard /soft rock) uses a variety of drill rigs dependent on the desired purpose, such as production, bolting, cabling, and tunneling.?
The drilling operation In connection with methane exploration or extraction activities in a belowground mine or part thereof, the conditions and other details for the conduct of drilling operation shall be specified by the Chief Inspector, by a special order.Different type of drilling machine used in underground coal mines like; Electric coal drill machine, pneumatic drill machine, jackhammer drill machine, & Universal drill machine.
The objective is to reduce the likelihood of getting injury due to failure in identifying the hazard during drilling, sharpening drill bit and to get optimum pull per blast.?
This module is applicable for all driller- (SDL-Side discharge loader) crew/LHD-(Load Haul dumper) crew, face crew and multi skill crew working in belowground mines for different drilling job in soft or hard rock/coal. ?