Slurry wall installation with hydromill

Slurry wall with hydromill

Slurry wall with hydromill

Slurry wall production using cutting technique:
1. Cutting of the second part of a long, three-part primary trench
2. Cutting of the third part
3. Excavation of the short secondary trench between two long primary trenches

Hydromills are used for very deep trenches and, above all, for very hard building ground. Unlike the grab a hydromill works continuously during excavation. With the help of cutting wheels the building ground is broken up and crushed. A pump inside the hydromill creates an upward flushing circuit out of the trench via hose lines. The loosened cuttings can so be conveyed out of the trench with the support fluid that is pumped to the surface. Thus contaminated support fluid is then cleaned in a treatment plant and fed into the trench again.

Examples with hydromills

  • The hydromill consists of the following main components: cutter frame, cutter wheels with hydraulic motors, suction pump and steering flaps.

    Hydromill

    The hydromill consists of the following main components: cutter frame, cutter wheels with hydraulic motors, suction pump and steering flaps.

  • Hydromills are usually fitted with steering flaps on the cutting frame. These serve to align the hydromill inside the trench.

    Steering flaps

    Hydromills are usually fitted with steering flaps on the cutting frame. These serve to align the hydromill inside the trench.

  • The cutting technique enables a continuous excavation. Therefore the hydromill is inserted only once in the suspension-supported trench.

    Continuous excavation

    The cutting technique enables a continuous excavation. Therefore the hydromill is inserted only once in the suspension-supported trench.

  • The hydromill can be driven by the on-board hydraulic system of the powerful Liebherr duty cycle crawler crane.

    Hydraulic supply

    The hydromill can be driven by the on-board hydraulic system of the powerful Liebherr duty cycle crawler crane.

  • With a hydromill enormous trench depths of up to 100 metres can be achieved.

    Enormous trench depths

    With a hydromill enormous trench depths of up to 100 metres can be achieved.

  • Cut-off walls are frequently installed using the single phase method for sealing off against groundwater. Here you see the core sealing of a dam.

    Cut-off walls

    Cut-off walls are frequently installed using the single phase method for sealing off against groundwater. Here you see the core sealing of a dam.

Video slurry wall installation with hydraulic hydromill

Hydraulic driven hydromills installing slurry walls on a construction site in Rome.

Hydraulically driven hydromills produce slurry walls on a jobsite in Rome. Play video

Hydraulic driven hydromills installing slurry walls on a construction site in Rome.

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