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Pilot construction site to reduce energy consumption

The excavation pit in Hamburg-Rothenburgsort is particularly "monitored" by Stump-Franki.

At the construction site in Hamburg Rothenburgsort, Stump-Franki pays special attention to recording energy consumption in the interests of environmental protection. The aim is to identify possible energy wastage and prevent it by taking appropriate measures. A digital electricity meter was installed for this purpose. Consumption is automatically determined daily and compared with the daily output. The Hamburg construction pit is one of three pilot construction sites where energy consumption is being precisely tracked.

Further information on the project
In December, our subsidiary Stump-Franki Spezialtiefbau signed the contract for the construction of a 14,200 m² watertight two-part excavation pit in Hamburg as part of a consortium. It is the basis for one of the currently largest new construction projects in the Hanseatic city: In the district of Rothenburgsort, around 1,000 flats will be built by 2025. The builders and clients are the construction project developers Instone Real Estate, evoreal GmbH and the SAGA group of companies. The special civil engineering work began in January 2022 and is scheduled for completion by June 2023.

The intelligent combination of special civil engineering methods solves the complex construction task: 10,620 m² of cut-off wall, 1,845 m² of diaphragm wall, 14,200 m² of soft gel sealing base, 3,320 m of temporary strand anchors and 1,214 VVB piles of the Atlas type are installed for the construction pit. The sealing and in-situ concrete diaphragm walls in the first section have already been constructed. In addition, the exploration for explosive ordnance has been completed for the client evoreal. Currently, the sealing base is being constructed with soft gel using the injection method.

The special civil engineering experts were able to convince the client with an economical solution: an excavation pit as a complete solution from one source. In addition, the client's need for "schedule reliability" is at the centre of the project. The execution planning, which is ready for approval, is realised by the subsidiary Stump-Franki Planung.


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