It was about ten feet thick, and the tunnel was about twenty feet wide at the base and about twenty feet wide at the top.
Thats almost 340 tons for those playing along at home... 20 * 20 * 10 = 4000 cubic feet of granite.
1 cubic ft of granite is 170 lb
170 * 4000 = 680,000 lb = 340 tons
Dude is well into Hulk / Thor strength levels
Ok so this math is off because its a semi-circle / half tube, not a square shaft.. but 170 tons is still insane super hereo level / broken strength. What does 70+ Agility / Dex / Intelligence look like?
I think he is up to about 30 in luck... if 20 is "human peak" then he is significantly luckier than mult-lotto winners and they guy who survived falling from an airplane without a parachute...