Linear regression analysis is conducted to investigate the correlation between thermophysical properties and lithology (classified as metamorphic rocks, igneous rocks, chemical sedimentary rocks, clastic sedimentary rocks, and loose sediments in this study)), density, and water content. The statistical distributions of thermophysical properties are analyzed based on histogram plots. This paper analyzes the thermophysical parameters (specific heat capacity and thermal conductivity) and their influencing factors based on 6467 sample data in 24 provincial capitals, China. Thermophysical properties of rock and soil are important parameters that affect the efficiency of shallow geothermal energy utilization. 4School of Resources, Hebei GEO University, Shijiazhuang, China.3College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, China. 2Technology Innovation Center of Geothermal & Hot Dry Rock Exploration and Development, Ministry of Natural Resources, Shijiazhuang, China.1Insitute of Hydrogeology and Environmental Geology, CAGS, Shijiazhuang, China.Xi Zhu 1,2*, Zongjun Gao 3*, Tao Chen 3, Wanli Wang 1,2, Chuan Lu 1,2 and Qinglian Zhang 4
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