backfill
backfill — verb
- backfillpresent simple I / you / we / they
- backfillshe / she / it
- backfilledpast simple
- backfilling-ing form
1. to put soil, rocks, gravel, or other material back into a hole, trench, or cavit
to put soil, rocks, gravel, or other material back into a hole, trench, or cavity that was dug out, often using the same material that was removed from it
After placing the pipe, Darius and his crew backfilled the trench with gravel.
backfill + [hole/space] + with [material]
The mining company must backfill all excavated areas before the land can be used again.
passive: be backfilled after excavation
Anong backfilled the foundation pit herself once the concrete walls were finished.
Before backfilling the hole, Ayana checked that no gas pipes were exposed.
The contractor backfilled the site with a mix of sand and crushed stone.
- excavate
the opposite action of digging out material
文法句型
backfill + [hole/excavation] + with + [material]
用法筆記
Frequently used in the passive voice because the focus is often on the completed work rather than who did it.
2. to find and bring in a new worker to do a job after the person who was doing it
to find and bring in a new worker to do a job after the person who was doing it has left or moved to a different role
The hospital urgently needed to backfill the nursing positions left vacant by the sudden resignations.
backfill + [position/role]
After Rin resigned, the department took three months to backfill her role.
Management promised to backfill the two senior roles before the end of the financial quarter.
We cannot backfill every empty desk; some teams will have to share the extra workload.
Padma was hired to backfill a position that had been empty for nearly a year.
文法句型
backfill + [position/role] + with + [person]
用法筆記
Subject is usually an organization or department. 'Position', 'role', 'post', and 'vacancy' are common objects.
backfill — noun
1. earth, stones, gravel, or another substance used to refill a hole, trench, or ca
earth, stones, gravel, or another substance used to refill a hole, trench, or cavity after digging or construction work is complete
The backfill around the foundation must be compacted well to stop the ground from settling.
the backfill + around/beneath + [structure]
Erik ordered a truckload of clean gravel to use as backfill for the drainage trench.
Wrong backfill can cause the soil above to shift and crack the pavement.
The backfill was a mix of original soil and a small amount of cement for strength.
Inspectors checked whether the backfill had been properly tamped down around the wall.
- fill
shorter and more general; 'fill' can mean any filling material in construction
文法句型
the backfill
use [something] as backfill
用法筆記
An uncountable noun; do not say 'a backfill' or 'backfills' when referring to the material itself.