Diaphragm walls with hydromill

The hydromill technology is particullary suitable for the construction of diaphragm walls in difficult situations: deep elements, digging hard soil and rock or facing strict construction tolerances.

The hydromill is a reverse circulation excavation machine, consisting of a heavy steel frame and two cutting wheels attached to its bottom end. The wheels rotate in opposite directions around horizontal axes, breaking the soil beneath the cutter and pumping it out of the trench to a complex desanding plant. The hydromill is utilized for the excavation of hard rock formations, for large thicknesses and depths, and when high accuracy is required.