Drilling and blasting

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What Wikipedia says

Drilling and blasting is the controlled use of explosives and other methods, such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction. The result of rock blasting is often known as a rock cut.

Excerpt from the Wikipedia article “Drilling and blasting”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Halen, CC BY-SA 3.0, via Wikimedia Commons.