The aims of this season were to tow all of the modules to the Halley VI site link them up and raise them to their operational height, to test the generators and to complete as much as possible of the internals. As the images below show we successfully towed all of the modules to the Halley VI site, raised and linked them.
To get the modules to the new site BAS vehicle managers Martin Bell and Ben Norrish had to tow them 15km over a prepared ice track. It was an impressive sight seeing each blue module glide by at Halley V and the red module just dwarfed everything it passed. At the Halley VI end it was incredible to see each one appear from the horizon gradually getting bigger and bigger then brought to a stop towering above us just a few feet from the next module. Then came the tricky part, manoeuvring the modules into position. When the modules stop moving their skis stick to the ice. So the BAS Project Manager, Karl Tuplin, used ancient technology “rollers” or in our case some short lengths of scaffold tube under each ski to prevent the “sticktion” and enable each module to be manoeuvred into position to an accuracy of 10mm.
|A blue Module being towed to Halley VI||The red module being towed to Halley VI|
After several years of storage in freezing conditions Galliford Try were keen to test all the generators to make sure they still worked and to give confidence they will start next season when commissioning begins in earnest. All four generators were first checked by setting them up and dry firing them. Then they were tested and analysed under load. Thankfully they all passed with the minimal of works required.
Generator number 4 being started for the first time
The rest of the construction team were busy fitting out the internals of all the modules. This included installing the building services, constructing the walls, ceilings, floors and finishes. As you can see from the photos the rooms are really starting to take shape inside.