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Rock Breakage and Blast Design Insights by Jessica Watson is a document available to read on EtoBox.
What is Rock Breakage and Blast Design Insights about?
The document discusses rock breakage from explosives used in mining blasts. It describes how detonation of explosives produces shockwaves and gas pressure that fractures rock. The shockwave initially exceeds the compressive strength of rock, crushing a small area near the blast hole. As it spreads, the intensity drops below compressive strength but remains above tensile strength, causing radial cracking. Reflection of shockwaves off discontinuities can cause slab spalling. Proper blast design considers the
- Author
- Jessica Watson
- Language
- EN