“Has anyone thought of what to do when these guys get the bends?”
As others have said, there is no worry of that since there is no water involved, so the pressure difference is the same as just gaining altitude, like going up a skyscraper or a ski lift.
However, an interesting thought experiment: If there WAS that kind of pressure down below, they could just have the miners walk under the pipe/hole one by one and they would just shoot right up and out of the pipe like a big spitball from a straw!
I think the biggest “adaptability” issue they are going to face is getting used to daylight again after being in comparatively dim lighting for over two months. I also wonder what it did to their circadian rhythm?
Maybe it has been stated already but I must have missed it if it was, how deep are they buried?