Backfill Material Selection
nounPronunciation: /ˈbækfɪl məˈtɪəriəl səˈlekʃən/
The process of evaluating and choosing appropriate fill material for reclamation purposes, considering factors including geotechnical properties, chemical inertness, compactibility, and cost-effectiveness. Selection criteria ensure backfill supports surface stability while minimizing environmental and safety risks.
Plain English
Choosing the right type of material to refill mined-out areas based on engineering and environmental requirements.
Etymology & History
Usage
"Backfill material selection for the limestone quarry closure prioritized inert waste from the adjacent aggregate operation."
Style guide notes: Treat as noun phrase; avoid splitting with modifiers between 'backfill' and 'material'; hyphenate when used as compound adjective.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What properties matter in backfill selection?
Angle of repose, permeability, compressive strength, chemical stability, and absence of hazardous substances are critical selection criteria.
Can waste rock be used as backfill?
Yes, non-pyritic waste rock can serve as backfill if testing confirms chemical stability and acceptable geotechnical properties for intended use.
Why Test Candidates on This?
Backfill selection directly impacts reclamation success, structural safety, and environmental protection in mine closure design.
Required skill level: Mid