论文部分内容阅读
概况老鹰山煤矿位于贵州省水城矿区东部,井田位于小河边向斜北西翼西段。矿井开拓方式为竖井石门开拓。通风方式为多风机分区通风。自建井投产以来,共发生了11次不同程度的煤与瓦断突出,最大突出强度为110余吨,涌出瓦斯量26万米~3。距地表最小垂深170米。在+1550米水平13号煤层最大瓦斯压力24公斤/厘米~2,瓦斯压力梯度8.7公斤/厘米~2/米。目前矿井瓦斯涌出量达16.5米~3/分;相对涌出量为19～21米~3/日·吨。随开采强
Overview Eagle Mountain Coal Mine is located in the eastern part of the water city in Guizhou Province, Ida located in the west side of the small river syncline west wing. Mine to open up the shaft for the development of Shihmen. Ventilation mode is multi-fan ventilation. Since the well was put into operation, a total of 11 different degrees of coal and tile break have occurred, with the maximum outstanding strength of more than 110 tons and the gas output of 260,000 meters ~ 3. From the surface of the minimum depth of 170 meters. At the level of +1550 m, the maximum gas pressure of No. 13 coal seam is 24 kg / cm ~ 2 and the gas pressure gradient is 8.7 kg / cm ~ 2 / m. At present, gas emission from mines reaches 16.5 m 3 / min; the relative emission is 19-21 m 3 / day · ton. With the mining strong