Investigating the Effect of Temperature Changes on the Physical Field of Surrounding Rock in a Deep Gold Mine

Table 3

Thermodynamic parameters of the surrounding rock.

Temperature (°C)	Modulus of elasticity (GPa)	Poisson’s ratio	Coefficient of thermal expansion (10^−6°C)	Constant pressure heat capacity J·(kg·°C)^−1	Thermal conductivity W·(m  °C)^−1	Density (kg·m^−3)
60	42.79	0.25	5.30	1102	3.22	2680
70			6.20	1114	3.16
80			7.50	1126	3.11
90			8.40	1138	3.06