Water Intake Tunnel
HEIGHT: 1.98 m ID
WIDTH: (circular)
FABRICATION METHOD:
2.44 m long segments were manufactured at Mechanics
Bay and stressed together with epoxy glued joints to
maximum lengths of 36.5 m.
WIDTH: (circular)
FABRICATION METHOD:
2.44 m long segments were manufactured at Mechanics
Bay and stressed together with epoxy glued joints to
maximum lengths of 36.5 m.
Marsden,
New Zealand
New Zealand Government
McConnell Dowell Ltd Auckland and Hume Industries (N.Z.) Ltd in consortium.
Detailed design by contractor
36.5m
Project construction
1967-04-30
One tube
1.98m
circular
2.44 m long segments were manufactured at Mechanics
Bay and stressed together with epoxy glued joints to
maximum lengths of 36.5 m.
Bay and stressed together with epoxy glued joints to
maximum lengths of 36.5 m.
The tunnel elements were (assembled as rafts) towed to site (approx 24 hours) and
sunk into excavated trench by use of 80 ton capacity floating crane.
sunk into excavated trench by use of 80 ton capacity floating crane.
Tremie grouted,
Concrete sills.