Engineering structures

Underwater work

SATIF deploys its human and material resources for all types of underwater work 

Repair and reinforcement of submerged foundations, quays, facings and inverts: formwork, concrete pouring, repointing, welding and oxy-cutting. Maintenance and renovation of all submerged structures.

- Dams & Hydroelectric
- Nuclear
- Dikes
- Locks
- Retaining walls

Cladding of production units: Pre-inspection of grooves and sills, assistance with installation of cladding elements, sealing.

Any work on ancillary equipment: changing screens, removing and refitting valves, etc.

- Dams & Hydroelectric
- Canals
- Nuclear
- Dikes
- Locks

Creation and maintenance of moorings and markers on lakes and rivers: implementation of moorings by immersing moorings or ecological moorings, installation of mother and daughter chains. Refloating of boats. Repair and maintenance of ancillary structures: sleepways, wharves, floating supports.

- Dams & hydroelectric power
- Lakes and rivers
- Seaports and river ports

Design and installation of permanent or temporary cofferdams in sewage or polluted water networks.

These operations are carried out with complete equipment for unhealthy waters: AH5 helmets and VICKING-type drysuits resistant to chemical aggression.

- Sanitation facilities
- Networks

Installation of discharge pipes or water intakes in lakes and rivers: creation of the bed and levelling of the bottom, assembly of elements, ballasting, installation of strainers. Maintenance and inspection of discharge pipes or outfalls: replacement of diffusers, air lift cleaning, inspection by robotized video or scuba divers.

- Nuclear power plants
- Wastewater treatment plants
- Water intakes

We offer to carry out periodic (triennial) inspections of sprinkler fire tanks, with a report including images and P1 water analyses.

These checks are carried out using a Mini-Rov to facilitate access to the structure, and do not require you to empty your structure.

We also offer three-yearly cleaning of Sprinkler tanks by scuba divers. Class II A-mentioned scuba cleaning enables the operation to be carried out in a single day, thus avoiding the draining of thousands of m³ of water and the immobilization of the tank for several days.

- Fire tanks

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