益民煤矿通风困难时期通风阻力计算表.xlsx

44 表5-2-1 益民煤矿通风容易时期通风阻力计算表 顺序巷道名称巷道特征 阻力系数NS2 /m4 长度m周长m断面m2风 量m3/s 通风阻力Pa风速m/s 1副斜井木棚0.00402609.935.40129.42.22 2井底车场木棚0.00805012.607.90121.51.52 3暗斜井一段木棚0.0080809.935.40125.82.22 4中部车场木棚0.008012512.607.90123.71.52 6暗斜井二段金属梯形棚0.0060759.935.4011.53.82.13 7暗斜井二段金属梯形棚0.00601359.935.40116.22.04 8运输顺槽木棚0.00802459.404.5055.11.11 9回采工作面单体液压支柱0.0380306.303.4554.41.45 11回风顺槽木棚0.00802709.404.5055.61.11 12采区专用回风下山金属梯形棚0.0060609.935.40176.63.15 13回风斜巷木棚0.0080509.935.40177.33.15 14回风斜巷木棚0.00801109.935.4017.517.03.24 15回风井砌碹0.00301507.904.90189.83.67 小 计86.0 附加阻力1512.9 合 计98.9 等积孔2.154184419 表5-2-2 益民煤矿通风困难时期通风阻力计算表 顺序巷道名称巷道特征 阻力系数 NS2/m4 长度m周长m断面m2 风 量m3/s 风 阻 NS2/m8 通风阻力 Pa 风速m/s 1副斜井木棚0.00402609.935.4012.00.06569.42.22 2井底车场木棚0.00805012.607.9012.00.01021.51.52 3暗斜井一段木棚0.0080809.935.4012.00.04045.82.22 4中部车场木棚0.00805012.607.9012.00.01021.51.52 5暗斜井二段金属梯形棚0.0060759.935.4011.50.02843.82.13 6暗斜井二段金属梯形棚0.00602609.935.4011.00.098411.92.04 7运输顺槽木棚0.00803809.404.505.00.31367.81.11 8回采工作面单体液压支柱0.0380306.303.455.00.17494.41.45 9回风顺槽木棚0.00804409.404.505.00.36319.11.11 10采区专用回风下山金属梯形棚0.00601759.935.4017.00.066219.13.15 11回风斜巷木棚0.0080509.935.4017.00.02527.33.15 12回风斜巷木棚0.00801109.935.4017.50.055517.03.24 13回风井砌碹0.00301507.904.9018.00.03029.83.67 小 计108.4 附加阻力1516.3 合 计124.6 等积孔1.918844