Reply to post: Re: High Lithostatic pressure making it hot.

Swiss effectively disappear Alps: World's largest tunnel opens

John Brown (no body) Silver badge

Re: High Lithostatic pressure making it hot.

Boyles law? (is rock just a very, very dense gas waiting to be liberated by heat and pressure?)

I also heard that they had to take special engineering account of the pressure induced weight of all that rock above so that the tunnel doesn't deform too much and eventually get squished out of existence.

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