One of the more exciting stages of the process is the blasting of a pattern. Once the pattern has been drilled and holes are checked for depth and the presence of water. The holes are then charged – loaded with explosives. Once all holes have been charged and the blast tied in, it is ready for blasting. Blasting is actually limited to three or four times a week, depending on production requirements, reducing disruption to the operation and production cycles.

Blasting at GMW is not as simple as at many other mines due to the fact that the mine is close to the city. Weather conditions are monitored very closely up to a blast and, if the wind is blowing towards the city, the blast may be delayed. This reduces the risk of creating a dusty environment for the town. Our Company is also very conscious of noise and vibration from blasting and have monitors for these throughout the town.