Review of the jet grouting method

Abstract

Jet grouting is a soil improvement technique which employs high-speed fluid jets to erode soils. The resulting cavity is subsequently filled with grout to form a composite material with enhanced characteristics. In a typical application, a borehole is first drilled to the depth of the treatment strata. A nozzle located near the tip of the rod ejects a horizontal pressurized water jet to cut into the soil. As the rod is rotated and lifted, a cylindrical cavity forms. Grout is ejected through a lower nozzle to mix with and displace the soil slurry, forming a columnar soilcrete element.