Huge quarry blast in Norway. · AditNow Community

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rufenig
50.2% (Neutral)
Newbie Topic Starter

9 years ago

Excellent video of blasting in a Norwegian quarry.
https://vimeo.com/173845941

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sinker
50.2% (Neutral)
Newbie

9 years ago

Tidy work!

Yma O Hyd....

TwllMawr
50.2% (Neutral)
Newbie

9 years ago

Would someone like to explain the shot pattern physics to achieve that fragmentation please .

Why was a Norwegian quarry blast counting down in English?

sinker
50.2% (Neutral)
Newbie

9 years ago

"TwllMawr" wrote:

Why was a Norwegian quarry blast counting down in English?

Blasting contractor is BAM. They are Scottish.

Shot pattern is basically experience of blasting that particular type of rock with a bit of trial and error. Each blast is theoretically "designed" in that the face is laser-profiled and the shot holes are surveyed for deviation prior to charging.

Yma O Hyd....

TheBogieman
50.2% (Neutral)
Newbie

9 years ago

Impressive! Biggest blasts in N Wales have been at Holyhead breakwater quarry - many, many, many years ago and at Penmaenmawr IIRC but nothing on this scale.

Explorans ad inferos