Transparent geological exploration technology of coal seam on the working surface of intelligent mining of thin coal seam

Intelligent mining is the only way for coal mines to move towards high-quality development, transparent geology is the key to intelligent mining, in order to fundamentally solve the problem of coal seam transparency, to Shendong Coal Group Yujialiang Coal Mine No.43101 thin coal seam intelligent mining work surface as the research object, studying to achieve the thin coal seam working surface intelligent mining of coal seam transparent geological exploration technology. Firstly, the geological model of coal seam exploration on the working surface is established by analyzing and sorting out the geological data exposed by the previous geological exploration, mine production and the adjacent working surface; secondly, the rapid realism technology and measurement technology of the roadway are used to obtain the parameter characteristics of the two-lane roadway of the working surface, the coal seam structure exposed by the open cut eye, the undulation of the top and bottom plate, and the exploration geological model is modified to establish the production geological model of the coal seam；Then, the change characteristics of the coal seam and geological structure on the working surface scale are analyzed, and the coal-rock interface integrated detection technology is mainly based on downhole directional drilling, engineering surveying, drilling peeping, and rock chip cataloging as the auxiliary, and the model is revised again according to the key parameters such as coal seam thickness, top floor plate elevation, coal rock layer structure, formation inclination and other key parameters to form a translucent intelligent mining geological model of coal seam; Three-dimensional laser scanning of the working surface, geological survey of working surface recovery, rapid realism and other technologies to detect the parameters of the coal seam in the process of recovery, and real-time feedback and optimization of the translucent intelligent mining geological model to form a transparent mining working surface coal seam transparent geological model; finally, the comparative analysis, recovery tracking, geological modeling and other technologies are used to analyze the applicability and feasibility of the technical system according to the mining of the subsequent working surface, and build a thin coal seam intelligent mining working surface coal seam transparent exploration technology system adapted to Yujialiang, and conducts a comprehensive and unified three-dimensional visual display of the entire working surface in a digital manner. It realizes the dynamic update of the transparent production model of the coal seam of the working surface, guides the adjustment and correction of the intercept trajectory of the shearer, and the accuracy of the results meets the requirements of intelligent mining.