Mine Void Infill
nounPronunciation: /maɪn vɔɪd ˈɪnfɪl/
The process of filling underground excavated spaces in closed mines with inert materials such as rock, sand, or cement-based materials to prevent collapse and stabilize the surrounding geology. Infill selection depends on structural requirements, environmental containment, and long-term stability objectives.
Plain English
Filling empty underground mine spaces with safe materials to prevent ground collapse and environmental problems.
Etymology & History
Usage
"The abandoned coal mine required extensive void infill to eliminate subsidence risks above residential areas."
Style guide notes: Distinguish between preventive void infill during closure planning and remedial infill addressing existing subsidence hazards.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What materials are suitable for mine void infill?
Inert materials like limestone, sand, tailings, and engineered fill meet stability and containment requirements without environmental release.
Why is mine void infill important?
Infill prevents sinkholes, stabilizes surrounding rock, reduces subsidence risk, and enables safe surface land use after mining closure.
Why Test Candidates on This?
Void infill knowledge is essential for mine closure engineers assessing long-term stability and post-mining land use compatibility.
Required skill level: Senior