A grout curtain is a barrier that protects the foundation of a

dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...

from

seepage Soil mechanics is a branch of soil physics and applied mechanics that describes the behavior of soils. It differs from fluid mechanics and solid mechanics in the sense that soils consist of a heterogeneous mixture of fluids (usually air and wat ...

and can be made during initial construction or during repair. Additionally, they can be used to strengthen foundations and contain spills.

Characteristics

A grout curtain usually consists of a row of vertically drilled holes filled with pressurized grout, a process commonly known as

pressure grouting Pressure grouting or jet grouting involves injecting a grout material into otherwise inaccessible but interconnected pore or void space of which neither the configuration or volume are known, and is often referred to simply as ''grouting''. The g ...

.Answer.com – Grout curtain
/ref> The holes are drilled in intervals and in such a way that they cross each other, creating a curtain.

Method

Grout is injected with grouting jets, which use a high-pressure fluid stream (i.e., slurry or water) to erode a cavity in the soil.

References

External links

Curtain Grouting the Georgetown LighthouseAvanti Group Case Study: Constructing Grout Curtain for DamBarden Ridge Dam, Sutherland, NSW - Grout Intensity Number (GIN) Method Project
{{Webarchive, url=https://web.archive.org/web/20120320113431/http://www.kellerge.com.au/pdf/Barden_ridge_GIN_Grouting.pdf , date=2012-03-20
Technical Resource for Jet Grouting
Geotechnical shoring structures

Characteristics

Method

See also

References

External links