Civil Engineering Reference
In-Depth Information
Construction steps following immersion
Immersion onto gravel bed
Dewatering of bulkhead
Survey
Release of lowering winch cables
Demount external marine equipment
Top up ballast tanks
Connect ventilation and lighting into bulkhead space
Air quality test bulkhead
Open bulkhead and inspect for leakage
Install Omega seal
Dismantle bulkheads (provided next element is placed)
Minimum backfill to achieve temporary factor of safety
Ballast exchange and dewater ballast tanks
Dismantle ballast tanks
Cut prestressing tendons at segment joints
Reinstate joint filler and sealant where prestress is cut
Install drainage pipes and gulleys
Complete ballast concrete at segment joints
Complete ballast concrete at immersion joints
Ballast concrete around drainage
Final ballast concrete screed
New Jersey barriers, kerbs, and footways
Fire protection
Cabling and power supply
Earthing and bonding connections
Cladding
Ventilation fans
Lighting
Cabinets
Emergency doors
Surface-mounted systems: signs, cameras, sensors
Road surfacing and markings
