Search

To boost the exploitation of energy resources in no manpower(little manpower) and to guarantee the demand of national energy and strategies, a complete integration of information technology and the theories of mineral resource exploitation is the direction for the revolution of energy resources development in the new era. A new round of information technology revolution occurs in the areas, such as big data, cloud computing, artificial intelligence, internet of things, regional chain and internet, and intelligent unmanned exploitation in coal, uranium, and oil and gas. In considering the integration of information technology, the scientific conception of precise mining of coal and its associated resources was innovatively developed in this paper. The innovative geospatial physical science, multi-phase and multi-field coupling theory and intelligent control system are proposed as a core guarantee system. supported by the "trinity"scientific research means including internet+on-site monitoring, physical/numerical simulation and basic experiments. The holographic real-time display of coal and associated resource endowment, original/disturbed geological disaster and the working condition of mining equipment is required. Also, the intelligent and flexible decision on mine planning, operation management and the ecological restoration of closed mines, the intelligent depth perception, accurate delineation and efficient resolution of the crisis for potential disaster, the self-repair of the damage space, the resilience recovery of control system, the adaptive adjustment of the equipment are all need to be achieved. Precise mining of coal and associated resources can effectively solve all these major problems subjected to exploration and monitoring, collaborative development, disaster prevention and control, and negative environmental externalities, to provide new ideas for the future development of coal and associated resources. In this paper, five key scientific issues and seven main research directions for the precision mining of coal and associated resources are summarized, and a phased plan is proposed for the safe, efficient and green mining of resources in the new era. [ABSTRACT FROM AUTHOR]

This paper probed into the whole height bench cast blasting process and described the influence factors from 3 major perspectives; natural geological, blasting scheming and factitious ones, and selected the throwing rate which was generally accepted in the cast blasting field to assess the blasting performance. Then a novel GA-SVM model was constructed to analyze the real collected explosion data from open pit mining, and verified in a certain open-pit. Also the MIV method was employed to analyze the influence factor at each input factor. The study indicate that; (T) the presented GA-SVM model performs more robust and accurate than other artificial intelligence models such as BP, RBF, GRNN and GA-BP, which has a more stable prediction accuracy of 83.75%. Moreover, due to the ubiquitous paradigm of the presented approach, it provides a single, unified approach to evaluating other blasting performance factors such as the longest thrown distance and loose coefficient etc; (2) for this certain open pit which maintains a steady lithological character and design parameters, the bench height, explosive specific charge possess a positive correlation coefficient with the throwing rate, while line of least resistance, the slope angle and the profile width perform the opposite. [ABSTRACT FROM AUTHOR]