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14211 was a prepared mining-face in Xin' an Coalmine, Henan province, and it has not been done any work for mining so far. Geological parameters selected in this paper include seam thickness, burial depth, sandstone ratios in 20m and 40m coal seam roof, gas content and minor faults. With the calculating results of gas emission from 2007 to 2010 in other working faces, this paper interpreted the influence on gas emission of selected geological parameters. The gas emission was combined withdoi:10.1016/j.proeng.2011.11.2287 fatcat:gtt64tciwferlgxinvqjqbnau4