Void Fill Grouting
nounPronunciation: /vɔɪd fɪl ˈɡraʊtɪŋ/
The injection of cementitious or chemical grout materials into subsurface voids, cavities, and fractures created by mining extraction to stabilize ground and prevent collapse. This process is critical for securing underground workings and preventing sudden subsidence events.
Plain English
Pumping grout material into underground cavities and cracks left behind by mining to prevent ground collapse.
Etymology & History
Usage
"The void fill grouting operation stabilized the abandoned coal mine's underground chambers before surface reclamation began."
Style guide notes: Specify grout type (cement, chemical, foam) when describing specific void fill grouting applications.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
Why is void fill grouting necessary for mine reclamation?
It prevents sudden subsidence and ground collapse by stabilizing underground cavities and fractures created by mining.
What materials are used in void fill grouting?
Cementitious grouts, chemical grouts, and polyurethane foams are commonly injected depending on cavity characteristics.
Why Test Candidates on This?
Void fill grouting is critical for preventing hazards in underground mine reclamation and directly impacts post-mining safety.
Required skill level: Mid