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Excavation pit and pile foundation for new apartment building

Photo: The construction work at the excavation pit with a depth of approx. 2-3 m. Numerous construction machines work in the excavation pit, excavate soil and establish the pile foundation.
Facts and Figures
Company FRANKI Grundbau GmbH & Co. KG
PrincipalCESA Wohn- und Gewerbebau GmbH
LocationBerlin - Germany
Type Specialist civil engineering
Runtime09.2014 - 02.2015

Living on good ground.

In Thulestrasse in the centre of Pankow an apartment building with 107 rented apartments and underground garages was built. FRANKI was awarded the contract for the excavation pit and pile foundation. 

Among the refills are the loosely to moderately dense sands usually found in Berlin, which, however, also contain boulder clay strips. As there was once a petrol station with an attached workshop on the property, the ground of the building plot was partly contaminated. This required special consideration during the construction process, partly with very small excavations.

After exploration for Warfare material and the construction of the first atlas piles near the retaining wall, FRANKI surrounded the excavation pit with sheet piling. The majority of the atlas piles and the dewatering were constructed from a pre-excavation level. Coordinating this work with the remediation of the soil was a particular challenge for the site crew. However, through constructive communication between all those involved, this was mastered with confidence and to everyone's satisfaction. After construction of the temporary strand anchors and the atlas piles as well as the excavation and cross-cutting work, FRANKI handed over the excavation pit to the shell builder in sections. The sheet pile wall was pulled out during the building construction work.