Variation of Permafrost Upper Limit in Permafrost Subgrade Covered by Snow on Steep Slope of Alpine Mountains

<div>The temperature of different thicknesses of snow cover varies with time under roadbed after 30 years of operation, (a) 0 cm snow cover, (b) 10 cm snow cover, (c) 30 cm snow cover, (d) 50 cm snow cover, (e) 70 cm snow cover.</div>

Shock and Vibration

fig8

Figure 8

Figure 8: Variation of Permafrost Upper Limit in Permafrost Subgrade Covered by Snow on Steep Slope of Alpine Mountains 