Underground Mine Subsidence
nounPronunciation: /ˌʌndərˈɡraʊnd ˈmaɪn səbˈsɪdəns/
The sinking or collapse of the land surface above underground mine workings due to removal of mineral deposits and inadequate support structures. This can create depressions, sinkholes, or gradual settlement that damages surface infrastructure and disrupts hydrology.
Plain English
The ground sinks or collapses over abandoned underground mines when mineral removal leaves insufficient support.
Etymology & History
Usage
"The abandoned coal mine caused underground mine subsidence that required filling and grading to prevent further settlement."
Style guide notes: Clarify whether subsidence is sudden or gradual when describing specific incidents.
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Related Terms
Frequently Asked Questions
What are safety risks from mine subsidence?
Sudden collapses create sinkholes, damage buildings and roads, disrupt utilities, and create hazardous conditions.
How do engineers prevent mine subsidence?
Methods include pillar extraction prevention, backfilling abandoned workings, and surface monitoring systems.
Why Test Candidates on This?
Important for assessing reclamation priorities and public safety in abandoned mining areas.
Required skill level: Mid