BLOWN OUT SHOT
A shot in which the explosive brings down no coal, the main force being expended on the air of the mine
BLOWN OUT SHOT RESULTS FROM
* Inadequate and improper stemming
* Excessive burden or specing between shotholes
*Improper use of delay detonator and incorrect sequence of firing of shot holes
Thank you
Blogger- Ajay Kumar patel
📚📒
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