U4 "HafenCity", high supporting construction frames
Germany
This extension of the U4 line begins at the existing Jungfernsteig station, from where it runs underground in a southerly direction. Two new stations were built in the HafenCity: 'Überseequartier' and 'HafenCity Universität'. In the works on the Überseequartier station building, horizontally arranged trench-shoring girders made it impossible to lift and reposition the wall formwork elements by crane. This necessitated using a traveller unit from which the wall formwork was suspended in large-area gangs. The excavation pit for the 'HafenCity Universität' contract section was so narrow that there was only enough space for single-sided formwork to form the 1.50 m thick and 10.60 m high walls. Doka supporting construction frames, coupled with Attachable frames F 2.40, were the right formwork concept here.
Project data
- Year of completion
- 2009
- Project duration
- 12 Months
- Country
- Germany
- Town or city
- Hamburg
- Realization
- Arge U4-HafenCity
- Structure
- Tunnel
- Type of structure
- Cut-and-cover tunnel
Stop Überseequartier
- Cross-sectional shape
- Rectangular
- Clear width
- 17,68 m
- Clear height
- 10,20 m
- Formed length of tunnel
- 168 m
- Length of concreting section
- 10,16 - 11,65 m
- Number of casting sections
- 30
Stop HafenCity University
- Cross-sectional shape
- Rectangular
- Clear width
- 16,48 m
- Clear height
- 10,60 m
- Formed length of tunnel
- 135 m
- Length of concreting section
- 10,20 m
- Number of casting sections
- 13