Halley VI was successfully relocated to it's new home 25 km further upstream on the Brunt Ice Shelf. Each module was disconnected, towed by two bulldozers and a PistenBully along a groomed ice road, then reconnected together at the new site.
The disconnection of the modules requires all sorts of expertise from plumbers, electricians, steel workers, through to communications engineers.
Once the modules are disconnected they are free to be moved one at a time with vehicles. The drivers are skilled, ensuring the modules are slowly towed away without damage while keeping them sliding across the ice for the 25km.
One of the most technical elements of the move was removing the bridge, which carries fuel and cables between the two sides of the station. The melt tanks, which melt snow for water, are also attached to the bridge.
The largest module, the red A module, weighs over 300 tons yet was easily pulled to the new site with the same three vehicles used to pull all the other modules.
Footage I filmed of the A module move can be found below.
Once at the new site the modules were re-aligned and reconnected.
A sandwich of low friction materials laid on the snow make the small adjustments possible.
Once all correctly aligned the core plant systems are recommissioned and tested. One of the most important plant is the generators that provide the life sustaining electricity and heating for the station.
Unfortunately, due to the Halloween Crack Halley VI will lay empty over the winter for the first tie in 60 years. The ice shelf has been deemed too unstable, especially as there is no way to evacuate during winter.