Construction Project
Pipe-Jacking in Sayreville (New Jersey, USA) |
Location
- Sayreville, New Jersey (USA)
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Client
- Middlesex Country Utilities Authority
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Planning
- Metcalf and Eddy, New York
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Investment volume
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Construction time
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Contracted services for BMG
- Construction site supervision
- Contract management
- Technical coordination
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Structures constructed
- Reinforced concrete duct (L = 1,041 m) by pipe jacking
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Special features
- Tunnel ended on an island that has been built artificially in the river
- Deployment of a hydro-shield
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Utilization
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Construction
- Excavated cross-section A = 4.25 m²
- Control gap s = 3 cm
- Internal / external pipe diameters = 3.36 m / 4.16 m
- Pipe quantity n = 338 units
- Pipe length L = 3.05 m
- Pipe wall thickness d = 40 cm
- Concrete quality B 45
- Prepressing equipment with key station of 8 presses of 3,080 kN each and 9 intermediate stations
- Excavation pits in sheet pilling construction
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