MISG January 2007 Rock mass damage associated with pre-split blasting in surface mining
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Transcript of MISG January 2007 Rock mass damage associated with pre-split blasting in surface mining
MISG January 2007
Rock mass damage associated with
pre-split blasting in surface mining
MISG January 2007
Industry contact: -Alan NaismithSRK Consultingmobile: 083 267 7458land line 011 441 1142e-mail: [email protected]
MISG January 2007
What is pre-split blasting?
Why is it important in surface mining?
MISG January 2007
Example of damage caused by blasting
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How does a pre-split work?
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But everything doesn’t always go to plan!
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RESEARCH QUESTIONS:- What dynamic forces are created near to the
mouth of the hole that could lead to “anomolous” fracture patterns?
What must be done to modify these forces and minimise or eliminate these “anomolous” fracture patterns?
MISG January 2007
Industry contact: -Alan NaismithSRK Consultingmobile: 083 267 7458land line 011 441 1142e-mail: [email protected]