February 4 - Mammoet has helped remove a ventilation stack weighing 100 tonnes from a Silos Direct Encapsulation Plant (SDP) at the Sellafield nuclear power station in the UK.

The 55 m high ventilation stack was lifted by Sellafield Ltd's project team using two large mobile cranes, before being loaded onto SPMTs and transferred to an onsite storage location, where it will remain until its re-erection.

Sellafield had been preparing for this lift for around 18 months, in conjunction with contractors VCUK, Nuvia and Mammoet.

"It has been planned in meticulous detail, with the work including demolition, ground preparation, safety case development and lifting attachment design, fabrication and testing," explained Richard Dobson, project engineer at Sellafield Ltd.

"The final scheme produced by Mammoet consisted of a tandem 'Top & Tail' lift and transfer of the stack to its temporary storage location using SPMTs and support steelwork without the need for further crane operations," he added.



Watch a timelapse video of the operation here: