Again totally wrong way of looking at it.
There is an exact equivalent in how much weight can an egg shell support that is identical in all respects to our issue with weight on earth crust.
Answer a hell of a lot if if you spread the load out
http://www.stevespanglerscience.com/experiment/walking-on-eggshellshttp://www.sciencefairadventure.com/ProjectDetail.aspx?ProjectID=176The deformation of the egg shell per unit area decides whether it breaks or not the total weight sitting on the egg.
I assure you that is the exact same situation and weight per unit area matters on earth not the weight itself.
There are no springs involved you have a thin crust which is being deformed based on the pressure per area on it. The crust will flex in the same way as the eggshell does based on that pressure and so long as the pressure isnt on a singular point it will tolerate alot.
It's also why semi trailers have multiple wheels to keep the weight spread out so the wheels don't sink into and crack the tarmac.
If you still aren't convinced get a party ballon and blow it up. Put a finger tip from each hand on either side and push and note the deflection you should be able to touch finger tips if it is moderately inflated. Now use the flats of your hands and try and get the walls to move anywhere near as close .... Area matters :-)
