Raise bore drilling: mining South Africa's heart of gold
RBD machines such as this one are capable of boring a perfectly round hole through the rock between mine levels, negating the need for wasteful and potentially dangerous underground blasting.
Raise bore drilling tests were conducted at the 3.9km deep TauTona gold mine.
RBD machines effectively remove the need to conduct wasteful and potentially...
Automated raise bore drilling removes workers from high-risk areas underground.
Mike MacFarlane believes tunnel borers can become revolutionary technology...