Table 1 Temperature statistics for some high Cold tunnels.
Name | Geographical position | Maximum burial depth (m) | Tunnel entrance temperature (°C) | Temperature inside the tunnel (°C) | |
|---|---|---|---|---|---|
Fenghuo Mountain Tunnel 32 | Qinghai-Xizang Plateau | 100 | -30 | -15 | -5 |
Guigara Tunnel 33 | 1152 | -17 | -0.91 | 5 | |
Daban Mountain Tunnel 34 | 1085 | -34 | -12 | -7 | |
Qingsha Mountain Tunnel 35 | 2012 | -18 | -4.8 | 0.9 | |
Baila Mountain Tunnel 36 | 1530 | -28 | -10 | -3 | |
Lingding Tunnel 37 | Tianshan | 2012 | -21 | -6.71 | 0 |
Kunlun Mountain Tunnel 38 | Kunlun Mountain | 100 | -23 | -12 | -1 |
Mocha Tunnel 39 | Siberia | 774 | -17 | 5 | 13 |
CRREL Tunnel 40 | Alaska | 610 | -40 | -25 | -7 |
Hanopo Tunnel 41 | Hokkaido | 449 | -20 | -11 | 4 |
