本文通过矿井采掘工作过程的分析,提出了不同类型矿井合理掘进率的确定方法。
Based on analyzing the mine working process of coal cutting and driving, a method of setting the rational rate of coal cutting and driving in different mines is deyeloped.
不断优化巷道布置方式,降低巷道掘进率,是矿井开采设计过程中的一项非常重要任务。
Optimizing roadway arrangement way unceasingly, reducing the tunnel drivage ratio is an important task in the mine mining design process.
其不仅有效的降低了万吨掘进率、降低了原煤成本,而且大大提高了矿井的资源回收率,取得了可观的经济效益。
It's not only effectively reduced the 10,000 tons' tunneling rate and the cost of coal, but also greatly enhanced the recovery of the mine resources, and achieved considerable economic benefits.
使用该方法能够提高煤炭采出率10%以上,提高巷道掘进速度1倍以上,降低掘进成本30%。
Adopting this method, coal recovery ratio can rise over 10% and roadway driving speed may increase over one times with its cost decreasing by 30%.
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 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.
建立出土率与密封舱压力变化率的数学关系,为盾构掘进密封舱压力控制提供参考模型。
The function of discharge rate and the changing rate of the chamber pressure is established, which provides the reference model of chamber pressure control for EPB machine tunneling.
建立出土率与密封舱压力变化率的数学关系,为盾构掘进密封舱压力控制提供参考模型。
The function of discharge rate and the changing rate of the chamber pressure is established, which provides the reference model of chamber pressure control for EPB machine tunneling.
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