Material Displacement

Underwater and shoreline material displacement, ensuring the correct foundation for infrastructure construction, installation, and maintenance.

What questions we answer

How can I remove all rocks, sand, and other materials from underwater before starting my project? 


With our access to work platforms, barges, and dump barges, we provide complete logistics solutions for marine material transport.

Underwater Excavation

We perform excavation and material handling using:

  • Barge-mounted excavators
  • Long-reach excavators for extended range
  • Grabs and cranes
  • Dump barges and work platforms
  • Specialized equipment for challenging seabed conditions

This enables us to handle mud, sand, gravel, rock material, and blasted rock underwater.

Ejector Suction

Ejector suction is a highly effective method for the removal and transport of underwater materials. We utilize both water ejectors and air ejectors (airlift systems).

The choice of solution depends on
  • Water depth
  • Material Type
  • Transport Distance
  • Environmental Considerations
  • Precision Requirements

What you'll receive

  • Removal of rock, sand, mud, and other materials from the seabed before project commencement
  • Complete execution of underwater excavation and material displacement
  • Access to the right equipment for all seabed conditions – from loose materials to blasted rock
  • Efficient handling and transport of materials by sea using barges and pontoons
  • Precise execution using excavators, cranes, and specialized equipment
  • Use of ejector suction (water or air) for gentle and efficient removal where appropriate
  • Method selection adapted to depth, material type, environmental requirements, and desired precision
  • A comprehensive logistics solution that ensures progress and good project control

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Dykker i grønt utstyr stiger opp fra vannet med hodet over og kroppen under vannet.