Title: Experimental Study on Mining Mode of Shallow Lying Coal Seam of Buerdong Mine
Abstract: The coal seam of Buerdong mine is shallow lying coal seam,according to the formerly experience,the underground press of shallow lying coal seam in longwall face mining style is generally appeared fierce.In order to forecast the pace of roof primary breakage and periodic breakage,and then to determine the feasible mining program,the similar material model experiments is done.The experiment result indicated that the ace of roof primary breakage is 45m,the fierce underground press while roof primary breaking may destroyed the hydro-holders in mining face.Strip pillars which reserved in mining field could reduced the mining face underground press while roof primary or periodic breaking. Three mining modes with the different strip pillar parameters are done.In considering of keeping the mining face safety and the highest recovery ratio,the mining mode which the strip pillar width is 8m,and the space between two strip pillar is 20m,is the best one in those three modes.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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