noun
explosive blast; blasting
Refers to controlled explosive blasting used in construction, mining, demolition, and similar industrial contexts.
トンネル工事で発破が行われた。
Blasting was carried out during the tunnel construction.
発破作業中は立ち入り禁止です。
No entry during blasting operations.
爆破 is a broader term for explosion or blowing up, including accidental or intentional destruction, while 発破 specifically refers to controlled blasting in engineering contexts.
Compound of 発 (はつ, 'discharge, set off') and 破 (は, 'break, destroy'), referring to breaking rock or structures by setting off explosives.