Construction of underwater outfall for the Torrevieja desalination plant
Construction of underwater outfall for the Torrevieja desalination plant
Client:
UTE IDAM TORREVIEJA
Location:
Alicante
Period:
July 2012
Type of service:
Maritime work
Speciality:
Underwater outfalls and intakes
Underwater work on an undersea trench, installation of 1,250 m de of GRP DN2000 piping, manufacture and installation of ballast blocks and diffusers and installation of concreted geotextile protection mats in the Torrevieja Harbour mouth section.
The work consisted in the installation of the underwater outfall of the Torrevieja desalination plant, 1,250 m in length, with 2,000 mm diameter GRP piping. The outfall was installed in a 3 metre-deep underwater trench, created by dredging with a hopper dredger.
To protect the outfall, we installed a geotextile mat, injected with concrete, in the Torrevieja harbour mouth section, and 78 concrete ballast blocks in the shape of an inverted “U”. The diffuser area features 64 reinforced concrete parts.
DETAILS
Technical data
Piping
Length: 1,250 m of DN2000 GRP.
Civil engineering works
Manufacture of 78 ballast blocks and 64 diffuser ballast blocks of reinforced concrete.
Covering and protection mat
Installation of 250 m of concreted geotextile matting.
Creation of trench
38,000 m³ dredging.
Vessel
OMVAC VII 5ª-VI S-3-05. 59.5 m length, 9.5 m beam. Tank capacity: 652 m³.
Diver team
1 team manager & 7 divers.
Diving system
Diving system with surface air supply, communication and lighting.
Gallery
