Residual Bearing Capacity
nounPronunciation: /rɪˈzɪdʒuəl ˈbeərɪŋ kəˈpæsɪti/
The load-bearing strength remaining in mine pillars and surrounding rock after mining extraction, which must be evaluated to prevent future subsidence or catastrophic failure. Assessment of residual bearing capacity is essential for determining the safe use of land above or adjacent to abandoned workings.
Plain English
The remaining strength of rock and pillars left behind after mining to support weight above them.
Etymology & History
Usage
"Engineers evaluated the residual bearing capacity of coal pillars to determine if the surface above could support industrial redevelopment."
Style guide notes: Use quantitative metrics when discussing residual bearing capacity in technical reports.
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Frequently Asked Questions
How is residual bearing capacity measured in abandoned mines?
Through geotechnical surveys, core sampling, and stress analysis of remaining pillars and surrounding rock formations.
Why assess residual bearing capacity before mine redevelopment?
To ensure surface structures won't cause pillar failure, subsidence, or collapse of abandoned underground workings.
Why Test Candidates on This?
Residual bearing capacity assessment is vital for safe land reuse planning above abandoned mines.
Required skill level: Senior