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Physics, Astronomy & Cosmology / How does the length of a tunnel, at constant depth, vary with length?
« on: 24/12/2009 17:10:54 »
How does the length of a tunnel at a constant sea level directly relates to increasing atmospheric pressure in quantitative terms?
I understand that the atmospheric pressure increases with the length of the tunnel, but my google searches have failed to produce any data concerning any formula or model that could express in quantitative terms the effect of the length of a tunnel from a single entrance (such as a mine shaft or a tunnel digging operation in progress). Anyone know where I can find such data or can anyone have knowledge of a formula that I could use to gather data with?
I understand that the atmospheric pressure increases with the length of the tunnel, but my google searches have failed to produce any data concerning any formula or model that could express in quantitative terms the effect of the length of a tunnel from a single entrance (such as a mine shaft or a tunnel digging operation in progress). Anyone know where I can find such data or can anyone have knowledge of a formula that I could use to gather data with?