Flyrock Flashcards
1
Q
Rock is wet:
A
- increases the risk of further flyrock propulsion
- water decreases the amount of gas energy which is absorbed by the rock
2
Q
Stemming length
A
stemming length should be 25-40 times the blast hole diameter
3
Q
Lundborg’s flyrock graph
A
blast hole diameter will provide the flyrock distance
1mm=0.0393 inches
