Study on the Formation Law of the Freezing Temperature Field of Freezing Shaft Sinking under the Action of Large-Flow-Rate Groundwater

Table 2

The values of the main calculation parameters.

Material	Density (kg·m^−3)	Thermal conductivity, W·(m·K)	Specific heat capacity, J·(kg·K)^−1	Porosity
Water	1,000	0.56	4.2
Ice	918	2.24	2.1
Sand	1,800	3.22	0.7	0.25