The Mine department is responsible for all work related to the drilling, blasting, loading and hauling of ore and waste material. As well, the Mine department employs laboratory personnel, surveyors, mine geologists, mine engineers and geological technicians to ensure reliable and quality production.
Ore and waste material is drilled and blasted using both large and small drill rigs drilling 4” to 6” diameter blast holes. The blasts are designed such that material can be mined out in 5m benches. An on-site explosives plant producing an emulsion product will be used to supply the explosives to the blast hole. The holes will be primed and tied together to a non-electric detonating cord that will be used to detonate the blast. Blasted material will generally be less than 800mm diameter. Any oversize will be drilled with a secondary drill and reblasted. Blast sizes will be maximized where practical to maintain large broken inventories in pit and reduce disruptions to mining operations. Blending requirements to ensure product quality will require multiple mining faces.
Hydraulic excavators and large front-end loaders are used to load 90 tonne haul trucks. A support fleet for motor graders, tracked dozers and excavators will be used to maintain the pit and waste dumps.
Waste material will be sent to a dump location Norwest of the pit. Ore will be delivered to the portable crushers at the base of the mountain.
At an ultimate depth the pit will have walls that are more than 500m above the bit bottom and waste dumps of equivalent heights.