Geotechnical Settlement
nounPronunciation: /ˌdʒiːoʊtɛkˈnɪkəl ˈsɛtəlmənt/
The subsidence or vertical displacement of ground surface caused by compaction, collapse, or consolidation of underlying geological materials in mined-out voids or weakened structures. This movement poses risks to surface infrastructure and requires engineering controls during abandoned mine reclamation.
Plain English
Ground sinking downward due to loose or collapsing materials beneath the surface after mining stops.
Etymology & History
Usage
"Geotechnical settlement assessments indicated that the abandoned mine posed subsidence risks to properties within 500 meters of the shaft collar."
Style guide notes: Distinguish between uniform and differential settlement; specify magnitude and rate when discussing impacts.
Also known as
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Related Terms
Frequently Asked Questions
What causes geotechnical settlement in abandoned mines?
Collapse of pillars, consolidation of tailings, compression of backfill, and water-induced weakening create subsurface voids and ground movement.
How is settlement risk managed in reclamation?
Solutions include backfilling voids, pillar stabilization, surface capping, subsidence monitoring, and building restrictions in high-risk zones.
Why Test Candidates on This?
Essential for site characterization and reclamation design to protect public safety and property in areas adjacent to abandoned mines.
Required skill level: Mid