A Closed-Form Solution for the Analysis of Antifreeze Disease Fortification Length in a Permafrost Tunnel
Frost damage in permafrost tunnels is very common, and this can have a negative influence on traffic.The most serious frost damage typically occurs at a certain length from the tunnel opening.Thus the antifreeze measures of the lining structure in this area need to be strengthened.In this study, the antifreeze disease fortification length for perma