Construction Project
Municipal Train Duisburg, Construction Phase TA6-Los 23 and 24 |
Location
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Client
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Planning
- Metropolitan Railway Construction Office of the City of Duisburg
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Investment volume
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Construction time
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Activities
- Construction management
- Contract management
- Technical coordination
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Structures constructed
- Two-track tunnel rectangular cross-section in open construction (L = 312 m)
- Operating rooms
- Pedestrian distribution levels
- Ramp (L = 260 m) to an above-ground reversing and parking facility in dig-and-cast construction method
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Special features
- Extensive work moving lines
- Groundwater compensation using a groundwater siphon
- Excavation of ramp under protection of subterraneous curtains and below the reinforced concrete cover placed over it
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Utilization
- Metropolitan railway tunnel of the City of Duisburg
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Construction
- Excavation pit created from braced or rear-anchored walls
- Watertightness of the excavation pit by integration of the subterraneous curtains in tertiary layers
- Design of the tunnel inner shell out of concrete impervious to water in the station area using invert-wall-ceiling construction
- Creation of ramp area out of subterraneous curtains with force-lock joining of reinforced concrete ceilings and inverts
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Geology
- Two groundwater storeys with seasonal fluctuations between 4.0 and 8.5 m
- Fills, clay, gravel, sand, fine sand, potter’s clay
- Chalk silt without sand inclusions respectively with sand strips and sand layers
- Rock of the carbon
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