Finite Element Analysis of Surrounding Rock with a Thermal Insulation Layer in a Deep Mine

Table 3

Experimental scheme.

Parameters	Symbol	Scheme 1	Scheme 2	Scheme 3	Unit
Conductivity coefficient of surrounding rocks	λ1	2.233	2.233	2.233	W/(m·°C)
Thermal diffusivity of surrounding rocks	a1	1.109	1.109	1.109	10^−6 (m^2/s)
Conductivity coefficient of the insulation layer	λ2	2.233	0.673	0.19	W/(m·°C)
Thermal diffusivity of the insulation layer	a2	1.109	0.6669	0.3619	10^−6 (m^2/s)