Home Underwater work

Underwater work

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

Civil engineering repairs

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.

Fields of application

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

Work on hydraulic structures

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.

Fields of application

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

Port work and river buoyage

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.

Fields of application

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

Wastewater treatment plants

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.

Fields of application

- Sanitation facilities
- Networks

Water intakes and outfalls

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.

Fields of application

- Nuclear power plants
- Wastewater treatment plants
- Water intakes

Fire networks

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.