Underwater work

Building in an aquatic setting

Regardless of the project size or conditions (ice, high currents, depth, contaminated water), we have the required know-how to take on any type of underwater project. Our divers, engineers, and welders have developed innovative repair methods and advanced technologies that result in important savings for our clients.

It is with much pride that we participated in the construction of major work sites. We have the required abilities and qualifications to either assume the entire mandate or work as subcontractors with both general and specialized contractors.

Types of construction

In addition to providing maintenance solutions, Divex Marine also offers a wide range of underwater intervention methods. All work is carried out in accordance with regulations, permits, and the most recent safety standards relevant to underwater work.

Construction and repair of:

• Hydro-electric dams and stations;
• Bridges, docks, locks;
• Water intakes and outfall pipes.

Installation and removal of:

• Water intakes;
• Pipe stoppers;
• Underwater cables (telephone, electric cables, optic fibres);
• Valves, casings, and pipelines ;
• Dam gratings and anchoring.

Specialized methods:

• Welding, cutting, and oxy-cutting (thermal cutting) of parts underwater;
• Formwork and excavation;
• Epoxy injection.

Consultative analysis and marine engineering

Underwater work requires optimal work methods. Divex Marine is your company for recommendations and high-precision data records. The following are examples of our analysis services:

Underwater project logistics and management

• Work site surveillance;
• Acceptance of work and obtaining permits;
• Inspection and implementation reports;
• Equipment inspection.

structural analysis

• Wall verticality;
• Acoustic imaging;
• Bathymetric studies of marine floor;
• Structural damage (bridges, dams, water intakes, etc.);
• ROV inspection.