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I'm just questioning 'what if' they get the angle of drilling by even 1 degree wrong OR they hit a difficult seem etc?
Hitting the target won't be an issue as smaller targets are hit at greater depths on a regular basis, albeit with a smaller diameter hole. I'd have thought that the geology of a mine would be well understood so I can't see that being a problem either.
Posted : 31/08/2010 2:58 pm
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