The results of experiment testify that the method not only realizes the normal ventilation and gas drainage in drivage roadway but also saves energy.
实验表明，该方法能较好地实现掘进巷道的正常通风和瓦斯排放，并达到节能效果。
The dynamic process of the roadway drainage in the side slope is simulated by using boundary element numerical method.
应用边界元数值方法模拟研究了巷道疏干边坡地下水的动态过程。
On-the-spot investigation was made on the basic parameters of gas drainage in drivage roadway in Huainan Coal Mining Area, and reasonable arrangement range of rib bore-holes an...
现场考察了淮南矿区掘进巷道瓦斯排放的基本参数，确定了巷帮钻孔的有效布置范围和合理抽放时间。
The measurement method is demonstrated valid in outburst elimination by the examination of remnant gas pressure, pre-drainage rate and the zonal verification during the coal roadway driving.
残余瓦斯压力和预抽率的检验以及煤巷掘进期间的区域验证，均证明按该方法布置的预抽钻孔，消突效果有效。
The outburst risk index and gas gush feature are analysed during roadway progress. The result proves that the effectiveness of zonal gas pre-drainage by cross-measure boreholes.
消突效果检验后进行煤巷掘进，掘进期间通过对突出危险性指标和瓦斯涌出参数的分析，验证穿层钻孔区域预抽瓦斯消突技术的有效性；
The outburst risk index and gas gush feature are analysed during roadway progress. The result proves that the effectiveness of zonal gas pre-drainage by cross-measure boreholes.
消突效果检验后进行煤巷掘进，掘进期间通过对突出危险性指标和瓦斯涌出参数的分析，验证穿层钻孔区域预抽瓦斯消突技术的有效性；
应用推荐