A New Mitigation Measure to Counter Thermal Instability of Air-Cooled Embankment in Sandy Permafrost Zones of Tibet Plateau

Table 2

Physical parameters of air and crushed-rock layer [24, 28, 29].

Physical parameters	C (J·m^−3·°C^−1)	λ (W·m^−1·°C^−1)	Ρ (kg·m^−3)	μ (kg·m^−1·s^−1)	K (m^2)	B (m^−1)
Air	0.644 × 10^3	0.02	0.641	1.75 × 10^−5	—	—
Rock layer	1.016 × 10^6	0.442	—	—	1.39 × 10^−5	211.2