Research Article
A Closed-Form Solution for the Analysis of Antifreeze Disease Fortification Length in a Permafrost Tunnel
Table 1
Frost damage characteristics in permafrost tunnels [
1].
| Tunnel name | Icy pavement | Frozen drainage ditches | Lining cracking | Ice hanging on arch | Tunnel opening cracking | Spalling of lining | Water leakage |
| Tiziling | ✓ | | ✓ | | | | | Qidaoliang | ✓ | ✓ | ✓ | | | | | Dabanshan | ✓ | | ✓ | ✓ | | | ✓ | Lingding | ✓ | ✓ | ✓ | ✓ | | √ | ✓ | Kuixian | | | | | | √ | | Xinganling | ✓ | | | | | | | Yuximole | ✓ | | ✓ | ✓ | | | | Beiweizi | ✓ | | | | | | | Baikaer | | | ✓ | ✓ | | ✓ | | No. 2 Xiluoqi | | | ✓ | ✓ | | ✓ | | Yaling | | | | | ✓ | | | Nenlin | ✓ | | ✓ | ✓ | | ✓ | | No. 2 Cuiling | ✓ | | ✓ | ✓ | | ✓ | | Kunlunshan | | ✓ | | ✓ | | ✓ | ✓ | Nanshan | | ✓ | | | | | ✓ | Qingshanli | | ✓ | | | | | ✓ | No. 1 Songyue | | ✓ | | | | | ✓ | Aolaling | | | | | | | | Mijiang | ✓ | | ✓ | ✓ | | | ✓ | Guanjiao | | | ✓ | ✓ | | | ✓ | Habutegai | | | ✓ | | | | | No. 2 Hujiriyan | | | ✓ | | | | | Yongan | | | | ✓ | | | | Fenshuiling | | | ✓ | ✓ | | | ✓ | No. 2 Tianshan | ✓ | | | ✓ | | | |
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