Construction Project
Railway Tunnel Tiergarten-Landwehr Canal |
Location
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Client
- DB Projekt GmbH Knoten Berlin
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Planning
- IVZ - Ingenieurgemeinschaft für die Planung von Verkehrsanlagen im Zentralen Bereich Berlin (Emch und Partner, Schüssler-Plan, DE-Consult)
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Investment volume
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Construction period
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Contracted services for BMG
- Section 55.8-HOAI–Property planning for engineering structures and traffic facilities
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Structures constructed
- For single track tunnel tubes in underground construction (L = 4 x 1,280 m)
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Special features
- Assembly shield (L = 8.50 m) and back-up (L = 54.00 m) with a weight of 420 t using a 1,000 t truck crane
- Shield driving using a hydro-shield for the track area in the tunnel
- Driving by use if fluid-supported tunnel advance, mechanic soil excavation and hydraulic soil transport
- Driving speed achieved 6 to 20 m/day
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Utilization
- Intercity tunnel and railway station for the DB AG
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Construction
- Single wall construction (Øi/Øe = 7.90/8.70 m) with water-proof reinforced concrete block tubbing elements
- Tubbing width (w = 1.50 m) consisting of seven segments and a key stone
- One tubbing stone (L = 3.70 m) weighs 5.2 t, one tubbing ring (L = 48.4 m) weights 38.60 t
- 27,300 single tubbings (equals 3,412 tubbing rings) were buílt in Neoprene ribbon in continuous slot round the tubbing to seal the joints against pressing water
- Grade of concrete B45, Tubbing thickness d = 40 cm with reinforcement 120 kg/m³
- Tubbings delivered as finished concrete elements in required dimensional accuracy of +/- 0,5 mm
- Tubbings are embedded through load transfer in the soil by grouting the shield trail using mortar
- Installation of a mass-spring-system in the rail trough plate to reduce oscillations and impact stress caused by operation in the long-distance rails
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