Overburden Recompaction
nounPronunciation: /ˌoʊvərˈbɜːrdən ˌriːkəmˈpækʃən/
The mechanical process of re-compacting previously excavated rock and soil layers to restore structural integrity and reduce future settlement. This procedure is essential for creating stable foundations in reclaimed mining areas and preventing long-term subsidence.
Plain English
Pressing down loose rock and soil that was dug up during mining to make the ground firm and stable again.
Etymology & History
Usage
"Overburden recompaction at the surface mine was performed in lift increments using vibratory rollers to achieve 95% standard proctor density."
Style guide notes: Specify compaction method and density standard (Standard Proctor or Modified Proctor) when discussing in technical reports.
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Frequently Asked Questions
What equipment is used for overburden recompaction?
Vibratory rollers, dozers, and compactors are used to compress materials in 6-12 inch lifts until target density is achieved.
Why is proper density important in recompaction?
Proper compaction density reduces future settlement, improves bearing capacity, and minimizes subsidence risk under surface structures.
Why Test Candidates on This?
Fundamental to post-reclamation site stability, foundation design, and compliance with regulatory density requirements.
Required skill level: Mid