Robert Connolly wrote:

So anyway, here's my problem. The largest granite slabs I work with are about
1500 pounds. 1500 pounds dropped at terminal velocity will become about
24,500 pounds of kinetic energy. To allow for environment temperature
variations, uneven surfaces, and angled impacts, I want a boot with a 25 ton
(50,000 pound) capacity.

To be honest, if I had a 25ton slab of granite approaching me at terminal velocity, I would want to be more than half a foot away from where it was about to land--about 10 metres minimum. And the lighter your shoes the quicker you're gonna be able to jump/run out of the way.

IMO, it would be to have regularly spaced "pits"/"trenches" to stand in,
with the ground in between them able to carry the weight of the granite slab bridged accross the gaps.

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