If you use enough ice rods, it would work.
They'd be destroyed in the process of course, but that is part of the solution.
Imagine instead that you froze 1/2" of ice in a solid sheet, put the sheet in place and slid the safe across it into position.
It'd work *once*.
Above is based on the opinion of a 20 year Small Arms Marksmanship and Training Unit USAF instructor with more than 30 years in competitive shooting sports. Your mileage may vary.