Mine Subsidence Grouting
nounPronunciation: /maɪn səbˈsɪdəns ˈɡraʊtɪŋ/
The injection of cementitious or chemical materials into underground voids and fractured rock to stabilize ground and prevent surface collapse at abandoned mine sites. This technique reduces subsidence risk and protects surface infrastructure by filling void spaces and reinforcing surrounding materials.
Plain English
Pumping cement or chemical materials underground to fill mine voids and prevent ground collapse at the surface.
Etymology & History
Usage
"Mine subsidence grouting was selected as the preferred stabilization method for the shallow coal mine voids beneath the residential development."
Style guide notes: Specify grout type, injection pressure, and void characteristics when documenting mine subsidence grouting projects.
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Contrasted with
Related Terms
Frequently Asked Questions
What materials are used in mine subsidence grouting?
Common materials include Portland cement, fly ash, silica fume, and polyurethane resins chosen based on void size and site conditions.
How effective is mine subsidence grouting for prevention?
When properly designed and executed, grouting can reduce subsidence risk by 85-95%, effectively stabilizing undermined areas.
Why Test Candidates on This?
Mine subsidence grouting expertise is valuable for senior-level reclamation engineers managing complex underground stability projects.
Required skill level: Senior