Mine void backfilling sequence
noun phrasePronunciation: /maɪn vɔɪd ˈbækˌfɪlɪŋ ˈsiːkwəns/
The planned phased approach and methodology for filling underground mine voids or surface pits with approved material during reclamation. Proper sequencing prevents differential settlement, ensures structural stability, and maintains compliance with hydrogeological and environmental objectives.
Plain English
The step-by-step plan for filling in empty spaces left behind by mining operations.
Etymology & History
Usage
"The mine void backfilling sequence prioritized placement of coarse aggregates in lower layers to enhance drainage before finer materials were added."
Style guide notes: Reference geotechnical analyses and hydrogeological assessments when describing backfilling sequences.
Also known as
Contrasted with
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Frequently Asked Questions
Why is sequential backfilling important in mine reclamation?
It prevents uneven settling, maintains ground stability, and controls water infiltration and contaminant transport.
What materials are typically used in backfilling sequences?
Coarse aggregates, clay-rich overburden, and approved waste fill are placed in engineered layers.
Why Test Candidates on This?
Mine void backfilling sequences are tested in geotechnical reclamation design and environmental impact assessment.
Required skill level: Mid