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132t Structural load test of passenger walkways completed within 4 hours

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Client Stena Line
Country Holyhead, UK
Year 2015
Service details

We specialise in the design, manufacture, supply and support of two main product lines: inflatable buoyancy products for diving, salvage and installation operations, and water bags for the load testing of cranes, davits, lifeboats, gangways and other load-bearing structures.

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Summary of the Project
Unique Group’s Buoyancy & Ballast division successfully completed a 132tonne structural load testing of the upper and lower passenger walkways for the HSS ferry in less than 4 hours.

Client Requirement
The client approached Unique Group to perform structural load testing of the upper and lower passenger walkways for the HSS ferry at Holyhead terminal. The project was a challenge as it needed to be completed within time and operational constraints.

Unique Solution Delivered

On analysis of the requirements and constraints, Unique Group’s engineers and the client team agreed to apply a total load of 132 tonne (68 tonne per walkway). The structural load test would be performed with the ferry attached to the walkway.

The complete work was carried out overnight to allow for the rapid tidal conditions and to cause no disruption to the sailing timetable. The client had provided us with a time window of 4.5 hours to complete the project.

Unique Group’s Water Weights brand used a series of specially designed flexitainers, manifold systems and extra pumping solutions to perform the structural load test. The client was very satisfied with our service as we completed the load test ahead of schedule, in less than 4 hours.

Benefits delivered

  • On-site Support and quick mobilisation
  • Experienced technical team
  • HSEQ Compliant
  • Project completed within schedule