Application:

• deepening and strengthening of foundation levelof existing structure even in very tight spaces thanks to the compact size of the equipment.
• water‑tight side wall and bottom sealing of excavations, which can also be combined with other retaining structures

During the construction of jet grout columns, the high‑pressure fluid jet (typically a mixture of water and cement) breaks up the soil structure and mixes with it. After the hardening of the binder it forms a soil‑cement structure. Using the high‑pressure grout jet, not only cylindrical columns but also panel‑ geometries can be produced by rotating the drill string. Jet‑grouted soil‑cement columns are structural elements with lower strength compared to concrete piles, but additional steel reinforcement can be added where higher load‑bearing capacity is required. When the goal is seepage reduction, overlapping of the jet grout elements can be ensured through precise technological planning. The jet-grouting columns’ diameter can vary between 0.6 m up to 3.5 m depending on the soil conditions and applied jet-methodology.