A modification of the Atlant technology is its combination with jet grouting technology (jet-grouting) at a pressure of 20 MPa. To implement jet-grouting, the drill head is to be equipped with nozzles, and additional aluminum sealing elements are to be installed in the coupling joint.
The main advantage of this technology is a significant increase in the diameter of the anchor / pile compared to conventional injection technology.
Comparison of the technologies shows that if with the standard Atlant technology the pile diameter is usually 150-200 mm, then when using high pressures, the diameter is 400-700 mm.
The use of jet technology is justified in some cases. Such cases include the installation of piles in soft soils, when in order to ensure the bearing capacity it is necessary to increase the pile diameter, and for other tasks, when an increase in the pile diameter is necessary to ensure the intersection of piles, for example, when creating technological screens between pits under construction and closely spaced buildings, etc.