Deep foundation
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Slurry wall grab

If slurry walls are installed with a grab, a two-jaw slurry wall grab suspended on a duty cycle crawler crane excavates the slurry wall panels. Mechanical grabs are opened and closed via rope, hydraulic grabs via hydraulic cylinders. Hydraulic grabs can additionally be fitted with flexible guiding strips on the grab frame which allow to align the grab within the trench.

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Production steps of a slurry wall panel made of reinforced concrete

1. Excavation using a slurry wall grab with addition of support suspension

2. Installation of the stop-end pipes

3. Insertion of the reinforcement

4. Installation of the concrete applying the tremie method with simultaneous pumping out of the support fluid

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Hydraulic slurry wall grab

A hydraulically driven thrust rod system opens and closes the grab jaws. The grab is hydraulically supplied through hoses from the carrier machine.

01/07

Video: Slurry wall grab

Duty cycle crawler cranes from Liebherr excavating slurry walls with mechanical or hydraulic slurry wall grabs.

Machines

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Job reports

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Duty cycle crawler crane HS 8100

with slurry wall grab HSG 5-18 in Milan.

01/04

Video: Slurry wall grab HSG 5-18

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