Jet grouting is a ground improvement technique used in construction to strengthen soils or create barriers. It involves the high-pressure injection of a cementitious grout into the ground, typically in a grid pattern, to create columns or masses of soil-cement. The process begins with the drilling of boreholes to the desired depth, after which a high-pressure jet of grout is injected into the soil, breaking it up and mixing it with the grout. As the grout cures, it forms solid columns or masses

Jet grouting and permeation grouting are both techniques used to improve ground conditions, but they differ significantly in their methods and applications. Jet grouting involves the high-pressure injection of a cementitious grout into the ground, which breaks up the soil and mixes with it to form a strong, consolidated mass. This method is highly versatile and effective in creating soilcrete columns, even in challenging ground conditions. Permeation grouting, on the other hand, is less invasive