backfilling
/ˈbækˌfɪlɪŋ/
noun
- The act of refilling a hole or excavation with material, especially after construction or digging.
- The workers completed the backfilling of the trench after laying the pipes.
- The backfilling of the foundation took two days with a bulldozer.
- Proper backfilling is important to prevent the ground from sinking later.
Synonyms