block caving

American  

noun

Mining.

1. a method of mining a large block of ore by systematically undercutting so the ore will cave.

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Example Sentences

Rio plans to mine the copper using a technique known as block caving.

From Reuters

The company said the block caving method it would use is safe and environmentally sound.

From Washington Times

“Block caving is safe, environmentally sound, and cost-effective for mining a large, deep orebody,” Resolution Copper said in an email.

From Washington Times

Resolution Copper Mining, owned by Rio Tinto and BHP Billiton, will use a method known as block caving to dig 7,000 feet into the earth and use chemicals to extract copper ore.

From Reuters

Phase 2 of developing Oyu Tolgoi requires block caving.

From Forbes