Construction equipment manufacturer Liebherr recently put its LSC 8-18 L to work on a second core line for the Deutsche Bahn between the stations Laim and Leuchtenbergring in Munich. The joint venture VE 41, comprising Implenia and Hochtief, is carrying out slurry wall work using the LSC 8-18 L.
The challenges for this project lie in the large dimensions of the slurry walls and the extremely confined space on the site. The project also demanded low vibration due to the partially historical buildings in the immediate surroundings. In a release, Liebherr says the contractor chose the LSC 8-18 L for its compactness and verticality.
Liebher says the cutter’s high weight, high cutter frame and low center of gravity provide the optimum basis to achieve the necessary verticality. The new equipment from Liebherr cuts its way through 33 cubic meters of soil per hour and requires 8 hours for a primary trench. The Munich construction site called for a total of 108 trenches measuring 1,500-by-3,200 millimeters with 30 centimeters overlap.
In addition to the cutter, the hydraulic slurry wall grab type HSG 5-18 is in operation. It is also fitted with verticality measurement and a turning device for the frame and is mainly used for the initial excavation of the trenches.
The carrier machine for both the grab and the cutter is a duty cycle crawler crane type HS 8130. In a release, Liebherr says the crane’s stability in combination with the large-dimensioned winches make the HS 8130 the perfect basis for such heavy equipment.
The joint venture on the project is using the separation plant SPC 600 C, which Liebherr offers as part of a package for slurry wall applications. The package also includes grab, cutter and duty cycle crawler crane. The plant can process up to 600 cubic meters of support fluid, including excavation material, per hour. In addition to the two duty cycle crawler cranes with slurry wall cutter and grab respectively, the drilling rigs type LB 24 and LB 44 are also working on the cramped site for the expansion of the suburban line.
The second core line is scheduled to open in 2028.
Liebherr’s product range includes earthmoving and material handling machinery, mining equipment, mobile cranes, construction cranes, machine tools and automation systems as well as high-performance components for mechanical, hydraulic and electrical drive and control technology. For more information, go to www.liebherr.com.