I saw one build where they put down a thick layer of foam board before pouring concrete and I know people often use foam board on the outside of basements.
Since the force is distributed, the foam is not compressed significantly? I have seen pictures of conexes buried a foot or two underground and the top and sides started bending in.
When I was looking at conexes I wondered how terribly hard it would be to make foam insulation boards that fit a conex.
How much foam would it take to protect a steel container from dirt?
