Slurry wall grab | Liebherr deep foundation

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.

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

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

Results 1-6 of 7

Slurry wall grab

Wall thickness - 500 - 1,800 mm
500 - 1,800 mm
Jaw opening width - 2,500 - 3,600 mm
2,500 - 3,600 mm
Max. closing force at teeth - 594 kN
594 kN

HS 8100.2 dual power

Duty cycle crawler crane

Max. lifting capacity - 100 t
100 t
Engine power - 450 kW
450 kW
Max. winch line pull - 2 x 295 kN
2 x 295 kN
Max. main boom - 59.00 m
59.00 m

Carrier machine for slurry wall construction

Max. working depth - 80 m
80 m
Max. grab weight, full - 30 t
30 t
Max. pull force in recovery mode (dual-winch operation) - 600 kN
600 kN
Drive - Conventional (diesel engine)
Conventional (diesel engine)

LBX 600 unplugged

Carrier machine for slurry wall construction

Max. working depth - 80 m
80 m
Max. grab weight, full - 30 t
30 t
Max. pull force in recovery mode (dual-winch operation) - 600 kN
600 kN
Drive - Electric (zero emission)
Electric (zero emission)

Duty cycle crawler crane

Max. lifting capacity - 100 t
100 t
Engine power - 450 kW
450 kW
Max. winch line pull - 2 x 295 kN
2 x 295 kN
Max. main boom - 59.00 m
59.00 m

Duty cycle crawler crane (HS series)

Max. lifting capacity - 70 t
70 t
Engine power - 320 kW
320 kW
Max. winch line pull - 2 x 200 kN
2 x 200 kN
Max. main boom - 50.00 m
50.00 m

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Job reports

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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