Jumbo completes two heavy lift projects

30 September 2012

Jumbo Javelin carries out the TP installation for the Anholt Offshore Wind Farm, off the Danish coas

Jumbo Javelin carries out the TP installation for the Anholt Offshore Wind Farm, off the Danish coast

Dutch firm Jumbo has completed the installation of transition pieces for the Anholt offshore wind farm, off the Danish coast. Jumbo’s DP2 heavy lift vessel Jumbo Javelin was used to transport and install the 111 TPs, achieving a record-breaking installation rate of three TPs a day, Jumbo said.

The Jumbo Javelin could carry up to nine TPs at a time. At the field the heavy lift vessel positioned itself using dynamic positioning and lifted the TPs, each weighting 180 tonnes, from the hold to place them on the pre-installed monopiles.

Earlier this year, the Jumbo Javelin was outfitted with job-specific equipment, including a motion compensated walkway, a grout plant and Jumbo’s new temporary accommodation unit to house up to 50 people. The vessel also had in-house developed passive heave compensators - with a 2.5 metre stroke and a safe working load of 300 tonnes - and two job-specific, remote operated spreader bars to lift the TPs.

Anholt is being built by Dong Energy. Danish contractor MT Højgaard, in charge of the foundation installation work, contracted Jumbo.

In August, Jumbo also completed the transport and discharge of 25 MOF caissons for the Gorgon project. These concrete caissons will form the base of the heavy lift material offloading facility for the Chevron LNG Plant, under development at Barrow Island, Australia.

The Jumbo Jubilee transported the 25 caissons, each weighing up to 700 tonnes, from Port Klang, Malaysia to Barrow Island, Australia in four shipments. At Barrow Island, Jumbo used anchor points and mooring lines to keep the vessel in position while discharging the caissons.

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