dredging operations; dredging work
Technical term for the work of removing sediment and debris from the bottom of bodies of water, typically to maintain or deepen navigation channels.
Dredging operations at the port are scheduled to begin next month.
The river's depth was secured through dredging work.
Refers to the act of dredging itself, while 浚渫作業 specifically denotes the operations or work involved.
A general term for work or operations; 浚渫作業 is a specific type of work.
Compound of 浚渫 (dredging) and 作業 (work, operations). The exact historical derivation is uncertain, but the kanji are conventionally associated with dredging and work respectively.