Study On Ⅰ₅ Coal Seam Continuous Mining Technology Based On The Paste Filling In Xinzhuchun Company

This thesis makes a system research of the I5 coal seam continuous mining technology based on the paste filling by the project background of Xinzhuchun Company 54 mining area 54001 and 54002 working face, using the combining method of theoretical analysis, numerical simulation and field observation. First, it introduces the experimental mining area project survey and the system arrangement of paste filling continuous mining by the background of Xinzhuchun Company 54 mining area, and also analyzes the superiority and technical features of paste filling continuous mining; then, it introduces key technologies and equipment of paste filling continuous mining; finally, by using the 54002 working face as prototype to establish FLAC three-dimensional numerical calculation model, and simulating the failure law of roof and floor of paste filling continuous mining, it does some analysis according to the simulating results and, simultaneously, it uses the field observation result to carry on the confirmationThe above-mentioned research has verified the feasibility and affectivity of the I5 coal seam continuous mining technology based on the paste filling in Xinzhuchun Company: on the one hand, this technology can extend the using age of Xinzhuchun Company, realize continuous mining, reduce remove time, improve the produce coal effect and inprove economic benefits of Xinzhuchun Company; on the other hand, paste filling shows a better control of the roof and floor strata, no sudden pressure change in the whole mining, no previous present of the strata-pressure, control surface subsidence and floor failure depth among the idealized range, fully meet the surficial construction protection of Xinzhuchun Company and the technical requirements of the security coal mining above floor confined aquifer.