Jewish burial with frozen ground

A Jewish relative died and the funeral is tomorrow at a Jewish cemetery in the Midwest US where we are currently deep in Winter. The ground is very much frozen; as far as I know it’s physically impossible to dig into the ground. Through my own google searching, I’ve discovered that there are such things as a receiving fault or receiving tomb but to me that doesn’t seem like a very a Jewish thing to do, since as far as I know the custom is to have a Jewish burial ASAP, which to me anyway means to get the body buried in the ground.

I’m eager to get your thoughts on what you think will happen tomorrow at the cemetery regarding a burial.