Characteristics Of Geothermal Field Of Deep Mine And Its Heat Damage Control In China

In this paper, using the geology, engineering thermodynamics, mining ventilation and mining science, the distributional characteristics and resource utilization of deep mine heat damage are researched. According to Chinese coal temperature distribution in the data at different depths, geothermal field zoning map In-1000m depth,-1250m depthe,-1500m depth and the depth of-2000 is drawn, and China's eastern heat damage mining area is divided into North, Central and South Area. After analyzing on underground environmental assessment of heat damage mines all over the world, according to deep temperature-gas control effect experiment, comprehensive consideration of Coal Mine Safety and human comfort, dry-bulb temperature, relative humidity and wind speed as an indicator of the deep thermal damage control standards are proposed. Three typical heat damage patterns are proposed and the countermeasures to utilize deep mine heat damage are found out base on the heat damage mines in China. Corresponding systems are successfully applied in Jiahe coal mine, Sanhejian coal mine and Zhangshuanglou coal mine.