Do mines have built-in safety devices for air/communication?
It seems that mines should include some sort of built-in safety devices like a continuous pipe (like a plastic high-pressure gas line) for air, and a strong cable for communication. Mines could stock small cave-in kits with minimal tools to allow miners to tap into both lines every X feet. Seems like this would make recovery safer and more effective, and relatively inexpensive.
Well I can’t say that they have a pipe for air, but they do have large fans that help circulate the air through the mine. They do have a very strong cable for communication. The only problem is that when there are hundreds of thousands of tuns of rock, coal and earth that come down on top of it, yes, it will break.
Miners carry with them what is called an scsr (self contained self rescuer); which, in the event the fresh air supply is cut off, and there is any CO or CO2 in the air, it will help generate enough oxygen for one hour to allow you to get to fresh air.
They also carry RFID chips on them so that they can be located and identified in the event of an accident.
They also have phones located every x feet with more at the end of the mine to improve chances of calling in a problem or emergency that has come up.
I can’t say that they have what people have in the movies. That is why those things are in the movies. They do, however have what is called a continuous miner. Which is as close as they currently come as far as I know.
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