News | 02/02/2018 Highest precision: Liebherr Duty Cycle Crawler Crane Shows Great Skill on Prehistoric Ground

Installation of slurry walls and archaeological excavations on one jobsite: this is the case in Zurich where a Liebherr HS 8100 HD is currently deployed. Due to this fact, the deep foundation work must be carried out with utmost care and highest precision.

The HS 8100 HD in operation on prehistoric ground.

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This sensitive and historically interesting project was awarded to the company Implenia Switzerland AG. As this project requires utmost precision, the right choice of construction machine plays an important role. Implenia found the right choice in the Liebherr duty cycle crawler crane HS 8100 HD. “It is a modern machine with high load-bearing capacity and performance and at the same time it has low fuel consumption and compact dimensions. It is the key machine for us as far as slurry wall applications are concerned,” explains Daniel Bucher, Head of Deep Foundation Applications at Implenia.

The duty cycle crawler crane is carrying out the current slurry wall work in Zurich using a grab. The slurry wall is 600 mm thick and 25 m deep. At times during the installation work the grab is working only 20 cm away from the facade of the listed buildings. This requires highest accuracy from man and machine. The Liebherr machine impressively demonstrates its reliability and highest precision. “The operator is very satisfied with the handling of the HS 8100 HD,” adds Daniel Bucher. Following the excavation of the slurry walls the reinforcement is inserted with the aid of the duty cycle crawler crane.