Abstract
The rock thermal conductivity of coal measure strata in Huainan-Huaibei Coalfield ranges from 0.37 W/mK to 4.36W/mK and the average value is 2.54W/mK. The thermal conductivity closely relates to lithology,buried depth,stratigraphic age and density, the thermal conductivity of sandstone is generally greater than the one of mudstone and coal, and thermal conductivity and depth, density all show the positive correlation relationship; The differences of thermal conductivity of rocks have greater effects on the Geothermal field characteristics, unconsolidated layers and coal seams with poor heat conductivity tend to cause the abnormal ground temperature.
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