Dr. Bailus Walker, an environmental and occupational medicine expert at Howard University Medical Center, says one concern is the effect the barometric pressure will have on their bodies as they're brought up. "You'll see muscular aches and pains in the joints called 'the bends' as a result of the decompression."
how many ATAs is 2200 ft below the earth's surface?
how many ATAs is 2200 ft below the earth's surface?
Ascent could bring bends, 'chokes' to miners
Re: how many ATAs is 2200 ft below the earth's surface?
ignoring the increase in density of air:
1.2 kg / m^3 (density of air) * 670 m = 804 kg /m ^ 2
[ 804 kg / m ^ 2 ] / [ 10332 kg / m ^ 2/atm ] = 0.07 atm or 2.5 fsw.
hmmmm..... magnitude makes sense when compared to the 8,000 ft cabin pressure of airliners, but even adding in the change in density with depth, i don't see how you're getting DCS out of that...
1.2 kg / m^3 (density of air) * 670 m = 804 kg /m ^ 2
[ 804 kg / m ^ 2 ] / [ 10332 kg / m ^ 2/atm ] = 0.07 atm or 2.5 fsw.
hmmmm..... magnitude makes sense when compared to the 8,000 ft cabin pressure of airliners, but even adding in the change in density with depth, i don't see how you're getting DCS out of that...
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Re: how many ATAs is 2200 ft below the earth's surface?
Hmmm, perhaps there is tissue compartment that reacts to being stuck with 60 other miners for months underground?
Re: how many ATAs is 2200 ft below the earth's surface?
Sounds pretty silly. Skydivers don't get bent on the way up and they climb unpressurized from ground level to over 10,000ft AGL in a matter of just a few minutes.
"The place looked like a washing machine full of Josh's carharts. I was not into it." --Sockmonkey
Re: how many ATAs is 2200 ft below the earth's surface?
the google suggests that some of the first observed cases of the bends were also in miners, but those were in mines that were artificially pressurized to keep water out of them.
Re: how many ATAs is 2200 ft below the earth's surface?
That would do it.
"The place looked like a washing machine full of Josh's carharts. I was not into it." --Sockmonkey
Re: how many ATAs is 2200 ft below the earth's surface?
lol, the "stinky armpit compartment".sea2summit wrote:Hmmm, perhaps there is tissue compartment that reacts to being stuck with 60 other miners for months underground?
Re: how many ATAs is 2200 ft below the earth's surface?
that long and the half time is going to be about 50 clean showers...spatman wrote:lol, the "stinky armpit compartment".sea2summit wrote:Hmmm, perhaps there is tissue compartment that reacts to being stuck with 60 other miners for months underground?
Re: how many ATAs is 2200 ft below the earth's surface?
lamont wrote:the google suggests that some of the first observed cases of the bends were also in miners, but those were in mines that were artificially pressurized to keep water out of them.
Pressurization is the key there. If the miners were working in compartments under pressure, then absolutely; DCS is going to be a factor. However, there is no indication they were in a pressurized environment, and the shaft that was opened to rescue them would have released the pressure anyway, so if they were going to get bent, it would have already happened.
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Re: how many ATAs is 2200 ft below the earth's surface?
Proper gas switches in this case would be scrub brush to bar soap to body wash....lamont wrote:that long and the half time is going to be about 50 clean showers...spatman wrote:lol, the "stinky armpit compartment".sea2summit wrote:Hmmm, perhaps there is tissue compartment that reacts to being stuck with 60 other miners for months underground?
Re: how many ATAs is 2200 ft below the earth's surface?
donate your primary soap and go to your soap on a rope?
----
"I survived the Brittandrea Dorikulla, where's my T-shirt!"
"I survived the Brittandrea Dorikulla, where's my T-shirt!"
Re: how many ATAs is 2200 ft below the earth's surface?
HA!ljjames wrote:donate your primary soap and go to your soap on a rope?
- sea2summit
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Re: how many ATAs is 2200 ft below the earth's surface?
That's a whole different deco schedule...ljjames wrote:donate your primary soap and go to your soap on a rope?
Re: how many ATAs is 2200 ft below the earth's surface?
Aren't there special "tables" for that?ljjames wrote:donate your primary soap and go to your soap on a rope?