BMG GmbH & Co. KG - Keithstrasse 2-4 - D-10787 Berlin | Tel: +49 (0)30 2100220

PDB 72

Construction Project
Pipe-Jacking in Sayreville (New Jersey, USA)
Location
  • Sayreville, New Jersey (USA)
Client
  • Middlesex Country Utilities Authority
Planning
  • Metcalf and Eddy, New York
Investment volume
  • approx. US$ 21.0 million
Construction time
  • 10 months
Contracted services for BMG
  • Construction site supervision
  • Contract management
  • Technical coordination
Structures constructed
  • Reinforced concrete duct (L = 1,041 m) by pipe jacking
Special features
  • Tunnel ended on an island that has been built artificially in the river
  • Deployment of a hydro-shield
Utilization
  • Waste water outlet
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