ABSTRACT
Jet-grouting is a soil treatment technique by injection of cement grout into the subsoil, at very high speed. The result of a single treatment is a cemented soil body of quasi-cylindrical shape, which is usually named jet-column or also soilcrete column. Adjacent jet-columns can be interpenetrated with each other and thus, by appropriately arranging several treatments, it is possible to create water cut-offs for dam foundations.
