Therefore, increasing the rock drivage speed has the most inportant meaning to accelerate the shaft building.
因此, 提高岩巷掘进速度, 对加速煤矿建设有非常重要的意义。
The cut way and hole parameters affect the drivage efficiency and cost.
掏槽方式及布孔参数影响着掘进效率和成本。
The support with bolt and cable is a main way of roadway drivage.
锚杆锚索支护是巷道掘进的一种主要形式。
Analysis of the comprehensive carrying capacity of waste rock in driving of rock drivage
岩巷掘进装岩运输综合排矸能力分析
Application of the Gas Discharge in Roadway Drivage
掘进巷道瓦斯抽放技术在沙曲矿的应用
Practice of Using Combined Ventilation to Solve Series Ventilation in Drivage
混合式通风觚决掘进串联风的实践
conventional drivage method.
习用掘进法
The sizes of section are related to the drivage costs, maintenance costs and ventilation electric costs.
井巷断面大小直接关系到掘进费，维护费和通风电费。
Probe into Drivage Supporting Technique Used in the Ground Roadway of Changcun Coal Mine
常村煤矿底煤巷沿空掘进支护工艺探讨
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