Grout curtain

A grout curtain usually consists of a row of vertically drilled holes filled with pressurized grout, a process commonly known as pressure grouting.^[2] The holes are drilled in intervals and in such a way that they cross each other, creating a curtain.

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.^[1]

• Levee
• Dam failure