Calculation of Roof Movement Parameters and Determination of Roof Structure Model of Working Face 12106 in Shangwan Coal Mine

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Calculation of Roof Movement Parameters and Determination of Roof Structure Model of Working Face 12106 in Shangwan Coal Mine

SUN Hong-Fa, HUANG Gui, RAN Yu-Xi, SUN Yuan-Fang

Modern Mining . 2014, (09): 8 -9+12 .