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backfill

backfill

1 3.9
Material used to fill a hole or trench after work is done
  • noun
  • /ˈbækˌfɪl/
  • Specialized
translation icon : relleno
  • Another challenge was the fact that wood chips needed for erosion control during foundation and backfill work aren't generated until a later stage of construction.
  • backfill material

Examples

  • The job's quicker completion is the result of not having to add backfill between the lateral runs of pipe or compact extra soil in the haunches.

    Academic text (2003)
  • The load prevents loosening of the soil, leading to a stress increase in the backfill around the structure.

    Academic text (1998)
  • Tire chips were used as backfill behind a retaining wall.

    Academic text (1996)
  • The availability of suitable backfill material has largely been dependent on construction projects on or near campus.

    Academic text (2001)
  • A geotextile is added to act as a filter for soil and backfill fines.

    Academic text (2003)
  • The recovered soil was subjected to analytical testing to determine its suitability to remain as backfill at the reclaimed landfill site.

    Academic text (1996)
  • Based on the success of this project, Purdue now utilizes most of its coal ash as well as some from A.E. Staley for backfill, in addition to the "clean fill" or natural soil that results from campus and local excavation projects.

    Academic text (2001)
  • Installing the new system at Jewel-Osco meant 45 percent less excavation volume, 78 percent less backfill used, and a 45-percent smaller footprint than a traditional retention/detention design such as the corrugated steel system first proposed.

    Academic text (2003)
  • The construction crew used gravel as backfill for the newly dug trench.

  • They added clay as backfill after installing the drainage pipe.

Synonyms

fill
vsbackfill
34 3.9

Material used to put into a hole to level the ground

is that material when used to place soil back into trenches after work
filler
vsbackfill
12 3.9

A substance used to fill cracks, holes, or gaps in things

is focused on construction trench use after work rather than general patching
filling
vsbackfill
1 1.4

The act of putting things into a space or writing details to make something complete

refers specifically to putting material into holes or trenches after construction
infilling
vsbackfill
  • Specialized
1 5.5

Material that fills a gap in buildings or the ground

is used after excavation work rather than mainly for urban redevelopment
backfilling
vsbackfill
  • Specialized
4.7

Filling a hole or trench with soil to make the ground level

is the material or action used only after work has completed
relleno
vsbackfill
  • Specialized
9.9

Soil used to fill holes and raise ground level

is the same construction material used specifically after excavation work

How Compacted

compaction
1 6.5
relleno
  • Specialized
9.9
backfill
  • Specialized
1 3.9
infilling
  • Specialized
1 5.5
fill
34 3.9

Surface Forms

backfill singular
backfills plural

Morphology

backfill = back + fill (transparent) = back + fill

The noun is a clear compound of 'back' + 'fill' meaning the material placed back into an excavation, so the sense is directly derived from its parts.

Etymology

Backfill comes from the parts back ('behind' or 'again') and fill ('to make full'), so it literally means 'fill back'. Think of pouring soil or gravel back into a trench or hole to restore the ground, which is why backfill refers to the material used for that purpose.