Blast damage - PowerPoint PPT Presentation

BLASTING FOR REDUCED ROCK DAMAGE AND CONTROLLING STABILITY

BLASTING FOR REDUCED ROCK DAMAGE AND CONTROLLING STABILITY. DAMAGE TO REMAINING ROCK. Damage Resulting From Conventional Blasting. Overbreak at SIDES BACK BREAK UNDER BREAK &amp; BACK SHATTER. BLAST DAMAGES.

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1.2k views • 48 slides

Mount St Helens

Mount St Helens. The first eruption. In 1975, scientists warned that Mt St Helens may well erupt again before the end of the century and in 1980 after a period of 120 years with not activity at all, Mt St Helens began to give a few warning signs of the things to come.

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427 views • 16 slides

What did we do?

What did we do?. I am become death, the destroyer of worlds. -J . Robert Oppenheimer . “The atomic bomb made the prospect of future war unendurable. It has led us up those last few steps to the mountain pass; and beyond there is a different country .” - J . Robert Oppenheimer .

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240 views • 7 slides

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