[Cerek]

That would be a cool show. Adam would go crazy over the chance to test something like that by setting off huge explosions. LOL.

I agree with your theory that it would depend on where the compression wave was coming from, especially since the pipe was buried. Unless the compression wave came straight through, it seems like that would be a good place to hide. But if the wave DID come through there, I agree with Azred that your insides would be turned to jelly and your bones would likely be shattered or crushed by the amplified shock.