Air Pressure half as mile underground

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SUMMARY

The discussion centers on the regulation of air pressure in underground mines, specifically referencing an iron mine in Minnesota. Pressure regulators are utilized to maintain safe air pressure levels for miners, preventing illness during extended work hours. This system operates on principles similar to cabin pressurization in airplanes but is adapted for underground conditions. The air pressure at half a mile underground is managed effectively to ensure miner safety, contrasting with the perception that it would be stifling.

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  • Familiarity with cabin pressurization concepts
  • Basic principles of atmospheric pressure
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  • Research the design and function of pressure regulators in mining environments
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Mining engineers, safety officers, and anyone interested in occupational health and safety in underground environments.

samsara15
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Years ago, I went to an Iron mine in Minnesota, and we took an elevator half a mile underground. Why wasn’t the air pressure down there stiffling?
 
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To keep everything safe, pressure regulators are displaced in mines. It is used to regulate the air pressure there so that miners working extended hours won't feel sick. ( There are quite a number of cases before where miners fell ill because of this.) The principle behind this is just like the cabin pressurization in airplanes, just the opposite of that.
 
1/2 mile (only 800m) above ground is hardly a big deal so why would 1/2 mile under the ground be?
 
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