Mine pillar stability
nounPronunciation: /maɪn ˈpɪlər stəˈbɪləti/
The engineering evaluation and monitoring of structural integrity of rock pillars left in place during mining to support overlying strata and prevent subsidence. Pillar stability assessment determines whether pillars remain competent or require reinforcement through grouting, cable bolting, or backfill.
Plain English
Assessment of whether rock pillars left in mines can safely support the ground above without collapsing.
Etymology & History
Usage
"Mine pillar stability evaluations determined that reinforcement was necessary before residential development."
Style guide notes: Distinguish between stability assessment (evaluation) and stabilization (remediation methods).
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
How is mine pillar stability evaluated?
Using stress analysis, material testing, geotechnical modeling, and field inspection of pillar condition.
What reinforcement methods strengthen unstable pillars?
Grouting, cable bolting, pillar backfill placement, or consolidation injections can increase pillar capacity.
Why Test Candidates on This?
Highly relevant for senior-level certifications in mine engineering and reclamation planning decisions.
Required skill level: Senior