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Underwater blasting

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Underwater Blasting

Underwater blasting requires precision, experience and complete focus on safety. The maritime contractor has solid expertise in underwater blasting, also in challenging areas such as dry docks, slips and land-based structures. With us, you get a safe and efficient solution – even when conditions are challenging.

The need for underwater blasting often arises in connection with the deepening of harbours and entrances, preparation for quay construction and foundation work, removal of rock in routes for pipes, cables and other infrastructure, as well as facilitating harbour expansions and industrial areas. Our extensive experience allows us to adapt the work to the unique requirements and surroundings of each project.

We only use proven and modern methods, such as drill and blast and contour blasting for precise shaping and minimal impact on nearby structures. Controlled charging is used to reduce vibrations and shock waves, and environmental measures such as bubble curtains and silt curtains protect marine life and prevent the spread of particles. All our projects take into account local conditions such as depth, current and ground conditions, and we always conduct thorough preliminary investigations to ensure optimal planning.

Safety is our highest priority. We follow strict HSE routines, ensure continuous monitoring during blasting and document all operations in detail. Risk assessments and environmental monitoring are carried out in accordance with applicable regulations, ensuring that both people and nature are safeguarded in the best possible way.

Why choose us for underwater blasting?

By choosing a partner with specialised expertise in underwater blasting, you ensure:

  • Optimal project execution and efficiency
  • Innovative solutions tailored to all types of ground and depth
  • Extensive experience from large and small marine infrastructure projects
  • Focus on environment, quality and safety at all stages

Contact us for a non-binding discussion about your project. 

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Workplace Safety

At Sjøentreprenøren, we have high standards for the safety work carried out at the workplaces. Systematic follow-up and dedicated personnel ensure that we always work safely

Contact us about underwater blasting

More contacts can be found here.

Our reference projects

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Miljømudring og utdyping Aibel

Miljømudring
Mudring
Sprenging under vann
Prosjektet var en del av forberedelsene til Johan Sverdrup P2 og omfattet både mudring og sprengning under krevende forhold. Oppdraget bestod i å mudre rundt 14 000 tonn forurensede løsmasser og sprenge cirka 3 000 m3 fjell. På grunn av den høye graden...
Storstein fergekai

Storstein Fergekai

Mudring
Sprenging under vann
Troms og Finnmark fylkeskommune ønsket å oppgradere fergekaia ved Storstein, og prosjektet ble delt inn i to entrepriser. Sjøentreprenøren fikk ansvaret for mudring, sprengning og riving, samtidig som den eksisterende ferga var i drift. Oppdragsgiver va...

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