Effect of High Temperatures on the Thermal Properties of Granite
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In recent years, the exploitation of geothermal resources has included the utilization of deep underground space, underground coal gasification activities, and disposal of high-level radioactive nuclear waste in deep geological repositories. Therefore, studies on the changes in rock properties at high temperatures have become increasingly important and necessary to ensure the safety of workers and the human population as a whole. In-depth understanding of the thermal properties of rocks at different temperatures has important and practical implications for the design, construction and maintenance of exploitation activities.
Thermal conductivity, thermal diffusivity and specific heat are three important thermal parameters of rocks (Wen et al. 2015; Miao et al. 2014). Recently, increasing numbers of researchers have focused on the thermal conductivity of rocks, and much related research work has been produced (Vosteen and Schellschmidt 2003; Miao et al. 2014). The...
KeywordsGranite High temperatures Thermal conductivity Thermal diffusivity Specific heat
This research was supported by the National Natural Science Foundation of China (Grant nos. 41672279, 41807233) and the Natural Science Foundation of Jiangsu Province (Grant no. BK20180662).