Underwater work at Valmayor Reservoir
Underwater work at Valmayor Reservoir
Client:
CYII - OSEPSA
Location:
Madrid
Period:
April 2012
Type of service:
Underwater work
Speciality:
Reservoirs and dams
Preparation in the bottom drainage area. Cutting of existing grille. Installation and anchoring of counterbalanced shield in Inlet 1 and caulking work. Installation and anchoring of counterbalanced shield in Inlet 2 and caulking work. Removal of shield and installation of protection grille.
An initial inspection was performed with the ROV (remote operated vehicle) to establish the state of the drains. For the installation works, we used a large pontoon to be able to carry out the cutting, installation and caulking of the counterbalanced shield.
Lastly, once the internal work on the reservoir was complete, the shield was removed and the protection grille replaced.
DETAILS
Technical data
Preliminary underwater inspection
Inspection with ROV.
Working depth
-43 m.
Hatch system
Counterbalanced shield with neutral buoyancy, seal with music note-type gasket, with taps to counterbalance buoyancy.
Divers’ equipment
Full face helmet with closed circuit camera and surface air supply with inbuilt filtering.
Working platform
60-m² modular pontoon for working in inaccessible areas. All assembly work was carried out on the modular pontoon, which was moved to the area above the bottom inlets with a boat.
Gallery
