掘削

1. Origins, structure, and basic meaning

• Structure: 掘削 is a noun and する verb for excavating ground or rock and is read くっさく.
• Basic usage: The material being dug appears in 地面を掘削する, while a construction stage appears in トンネルの掘削中.

2. Common pitfalls and similar expressions

• Work and construction stage
  • 掘削する describes excavation such as digging with heavy machinery, while 掘削中 marks that work as in progress.
• Difference from 掘る
  • 掘る is the everyday verb for digging, while 掘削 is a noun commonly suited to excavation in construction or civil engineering.