C23-048 · Offshore Wind
Pipelinepost-trenching&rockbagrecovery
- Client
- Seagreen Project
- Tooling
- TRS1-LD & RSBG
- Region
- Carnoustie Bay, Scotland
- Year
- 2023
The challenge
Controlled flow excavation of three 300-metre pipeline sections to a depth of 2.7 m, plus remedial cable burial to 2 m top of cable, in three to six metres of water.
Our solution
The TRS1-LD jet trencher performed the excavation and cleared rock bag and debris sites, while the five-tonne RSBG recovered rock bags and anchors. Gemini NBI sonars provided real-time imaging throughout.
The result
All sections completed to specification in silty sand, with currents of one to two knots.
Next project
Cable burial with full project management
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