A Closed-Form Solution for the Analysis of Antifreeze Disease Fortification Length in a Permafrost Tunnel

<div>Cross-sectional geometry of the Fenghuo Tunnel: (a) cross-sectional structure of the schedule drawing; (b) practical engineering of the Fenghuo Tunnel.</div>

Advances in Civil Engineering

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Figure 10

Figure 10: A Closed-Form Solution for the Analysis of Antifreeze Disease Fortification Length in a Permafrost Tunnel 