Backfill

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backfill

[′bak‚fil]
(civil engineering)
Earth refilling a trench or an excavation around a building, bridge abutment, and the like.
(mining engineering)
Waste sand or rock used to support the mine roof after removal of ore.

Backfill

Crushed stone or coarse soil placed around the foundation walls to provide drainage for water collecting in the soil behind the wall.

backfill

Soil which is replaced in an area that has been excavated previously.

backfilling, backfill

1. Rough masonry built behind a facing or between two faces.
2. Filling over the extrados of an arch.
3. Brickwork in spaces between structural timbers. Also see nogging
4. Soil or crushed stone used to fill the space between the excavation or sheeting and the exterior of a structure, or around the foundation walls to provide means for water to drain away from a foundation.
References in periodicals archive ?
When goafs are backfilled promptly, the stress concentration decreases, and the crack extension process is slowed down (Figure 10(c)).
A simulation experiment using similar materials was conducted to simulate the entire backfilled GER process.
The successful cut-through of 3 Right recovery entry can be mainly attributed to the: (1) completely backfilled low-density concrete, and (2) pre-installed primary and supplemental bolts, along with a T3 roof channel, and steel and nonmetallic recovery meshes, fiberglass bolts in the inby pillar, steel rib bolts in the outby pillar, and angled roof/rib channel.
The method of paste backfill mining with the full gob being backfilled was adopted to control the roof.
The critical envelope was backfilled in two days, allowing contractor to begin embankment fill placement.
Margaret said management was in breach of the 2011 nurses award, which says community nurses will be backfilled for four weeks annual leave and longer if they work shift work or weekends.
For pipeline padding and backfilling, it allows material to be screened on site and then backfilled directly into a trench, eliminating the need for a dedicated stationary screening machine.
Abbasy, "Numerical and experimental study ofgeothermal heat extraction from backfilled mine stopes," Applied Thermal Engineering, vol.
Also a subsidence area (above the failed pipe) will be excavated and backfilled. Straw Bales and Silt fence are proposed for proper silt control.