Mining Engineering > GATE 2024 > Blasting
In an opencast coal mine, blast vibrations are measured at two locations, A and B simultaneously for a maximum charge per delay (Q) of 1200 kg as given.
Assume the relation A Table:
where, K and β are site constants. The PPV in mm/s, at a distance of 200 m from the blast face, is ________.(round off up to 2 decimals)
Correct : 6.16
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