Thermal Property of Granite in Deep Strata and Its Effect on Thermal Zone of Surrounding Rock

Table 1

Thermophysical parameters of rock samples from 1,500–2,000m in the Xiling well construction area of Sanshandao gold mine.

Depth m	1500	1600	1700	1800	1900	2000
Thermal conductivity W/(m^.K)	2.2754	2.3731	3.1501	2.4600	2.9549	2.8666
Thermal diffusion coefficient mm^2/s	1.4672	1.0972	1.5658	1.2335	1.2011	1.3181
Specific heat capacity MJ/m^3K	1.5510	2.1645	2.0119	2.0003	2.4602	2.1748