Current status and development direction of intelligent mining technology for deep coal resources

Deep coal resources mining sites have high stress and strong mining impacts, and rock burst disasters occur from time to time. Intelligent mining is an important mean of deep resource exploitation, so there is an urgent need to develop deep resources safe and green, intelligent and efficient mining technology and equipment to accelerate the practice of intelligent miningin kilometer deep wells. Based on Yankuang Group' s accumulated experience in coal mining technology over the years and the analysis of the current status of intelligent mining technology, the paper focuses on the key production links such as disaster prevention and exploration-excavation-mining of coal resources in deep mining, then the current status and existing problems of mine geological exploration and modeling, deep well disaster prevention technology, intelligent driving and mining technology are described respectively, and the specific research content and expected research goals corresponding to each technology are proposed by looking forward to the trend of intelligent mining of deep coal resources. The current 3D geological modeling technology can basically assist in planning downhole safety production, it is still in its infancy, with insufficient detection accuracy and lack of real-time processing functions.The introduction and development of the mine earthquake observation system help prevent and control the rock burst, however,it is still necessary to invest in research on key layer movement characteristics monitoring and disaster control methods, and at the same time, it is necessary to further improve the degree of intelligence in mine thermal hazard prevention. While making great progress in basic theory and equipment development, more energy should be devoted to coordinated control of coal seams and equipment with complex geological conditions. © 2021 The authors. All right reserved.