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Through analyzing current coal mining filling technology, this paper puts forward a new method of optimization design of filling line parameters. Combined with coal mining technical condition one Tangshan mine, the main working parameters in like paste slurry filling pipeline conveying process has identified, such as velocity, the maximum working pressure, dry filling inner diameter, filling pipe...
According to the incomplete clear mechanism of bolt support action presently, the bolt support parameter of 12910 face haulage roadway is given optimized design in HANDAN TAOYI mine by the analytic system software: ANSYS, using theory analysis, numerical simulation and engineering actual measurement. The surrounding rock failure region of the optimized roadway is 12.54m2, decreased by 31.0% compared...
Fire, one severe disaster of the coal mine, threatens miners lives seriously and hampers the sustainable development of the mine. Current fire disaster evaluation with a strong subjectivity hasn't a perfect evaluation index system. This paper uses grey relational evaluation mode of the grey theory to analyze many non-linear, dynamic factors influenced fire disasters quantitatively and determine the...
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