grout curtain
nounPronunciation: /ɡraʊt ˈkɜrtən/
A barrier of injected cement or chemical grout installed underground to control groundwater flow. Used in mine reclamation to prevent water infiltration into abandoned workings.
Full Definition
A grout curtain is an underground barrier created by injecting cement, bentonite, or chemical grout into the subsurface to form a continuous wall that controls groundwater movement. In abandoned mine reclamation, grout curtains are strategically installed to prevent surface water from entering mine voids or to redirect contaminated groundwater flow. The curtain is typically installed by drilling a series of closely spaced holes and injecting grout under pressure until a continuous barrier is formed. This technique is essential for long-term mine site stability and environmental protection.
Plain English
A underground wall made by pumping cement-like material into the ground to stop water from flowing where it shouldn't go around old mines.
In Editorial Context
A technical remediation method frequently featured in mine reclamation case studies and regulatory compliance documentation, requiring careful explanation of engineering specifications and environmental benefits.
Etymology & History
Developed during early 20th century dam construction and later adapted for mining applications as understanding of groundwater hydrology advanced.
Originally used primarily in civil engineering, expanded to environmental remediation in the 1970s with increased environmental regulation.
Usage
"The abandoned copper mine reclamation plan specified installation of a grout curtain to prevent groundwater contamination of the adjacent watershed."
Usage note: Often confused with other barrier technologies; specify grout type and installation method for clarity.
Context: technical reports, environmental impact assessments, remediation plans
Region: international
Also known as
Contrasted with
Don't confuse with
Slurry walls use different materials and installation methods despite similar function