Belgian international crane rental and heavy lift company Sarens has carried out four 1,850 tonne lifts at the Wergeland base in Gulen, Western Norway, using a 2,500 tonne Liebherr LR12500-1.0 crawler crane.
The job involved lifting four footings/foundation blocks each of which were 25 metres high by 27 metres wide and weighed 1,850 tonnes - out of the water and onto the quay.
The LR12500-1.0 prepares to lift one of the four footings
Once out of the water they were places onto blocks ready for SPMTs (Self Propelled Modular Transporters) to pick them up and transport them away from the quay to a recycling facility, as part of a massive decommissioning process.
The LR12500-1.0 brings one of the 1,850 tonne footings onto the quay
The LR12500-1.0- which happened to have already been on site - was rigged with 80 metres of main boom, and 1,240 tonnes of Superlift counterweight extended to a 35 metre radius. In this configuration the crane could have handled the load at a radius of up to around 25 metres with a hook height of around 72 metres. The company also had to provide a 2,000 tonne shackle to connect the hook to the rigging.
At least one of the lifts was carried out at night
A couple of the massive footings
Project manager Willem Ditmer and project engineer Wim de Keersmaecker led the Sarens team through challenging conditions, including record rainfall during the rigging operations while the footings were still floating.
The video below shows a little more detail from the lift.
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