Physical Model Test of Artificial Freezing-Inclined Shaft

Table 2

Thermophysical parameters of sand at different temperatures.

Density (kg/m^3)	Temperature (°C)	Heat capacity kJ (kg·°C)	Thermal conductivity W (m·°C)
2190	25	0.998	1.41
	−5	0.667	1.71
	−10	0.849	3.58
	−15	0.553	3.65
	−20	0.546	3.67