Originally Posted by
F-16GUY
To me it looks like the wheel has liberated itself from the axel, damaging the brake hydraulic lines in the process, necessitating sand to clean up the fluids from the ground.
You may well be right about damaged brake lines, but that could as easily be caused by flying chunks of tyre carcass, it doesn't necessarily mean the whole wheel has departed, and they didn't in this instance:
Air Canada Airbus A330 rejects take-off at Brussels Airport - Luchtzak.be
Removal of the tire/wheel the normal way usually requires some sort of jack which i don't see in the picture.
It looks like both the outer wheels have been removed. You do that one at a time on the A330, by jacking up the appropriate end of the bogie, so the jack will be lurking behind the rightmost wheel in the photo, in fact I think you can just see part of it poking up.