pillar of ground

pillar of ground

运输平巷上方的煤柱

Design and Application on Comprehensive Safety Protection Facility of Transportation Inclined Tunnel in Coal Mine

煤矿运输斜巷安全综合防护设施的设计与应用

The Application and the Design of the Transport Pneumaticzed switch and the Block car column of Wells roadway Underground

煤矿斜巷运输气动道岔和挡车栏的设计与应用

Optimization of Ventilation System in Protection of Pillar on Recovery Roadway

回收大巷保护煤柱时通风系统的优化

Influence of Coal Strength Coefficient on Width of Protective Coal Pillar

煤的强度系数对井巷保护煤柱宽度影响分析

A tentative study on fault traversing roadways and the design method for water separation coal pillar

巷道过断层及断层防水煤柱留设方法初探

Application of Grouting Cable Anchor in Small Coal Pillar Roadways

注浆锚索在小煤柱巷道群加固工程中的应用

Study on the Key Technique of Strip Coal Pillar Recovered by Driving Roadway and Filling;

掘巷充填回收部分条带煤柱的关键技术研究

Application on Non Coal Pillar Mining for Gob-side Entry Retaining Technology in High Gaseous Mine

沿空留巷无煤柱开采技术在高瓦斯矿井的应用

Application of Pressure Bolting Supporter Under the Influence of Small Coal Mining Pillar Roadway

采动影响下小煤柱巷道让压锚杆支护的应用

Characteristics of Coal Pillar's Concentrated Load and Its Influence on Surrounding Rock Stress of Roadway

煤柱集中载荷特征及其对巷道围岩应力的影响

Concentrate loading of pillar and its effect on the tunnel surrounding rock stress of differ location

煤柱集中载荷对不同错距巷道围岩应力的影响

Practice Entry Protection Technology on Full Mechanized Working Face Heteromorphism Coal-pillar Condition

综放工作面异形煤柱条件下的护巷技术

attached to a locomotive to carry fuel and water.

联系在机车上的运输煤和水。

A passage or gallery in a coal mine.

通道煤矿中的通道或水平巷道

The research on the methodology of weighted average evaluation for surrounding rock stability of tunnel

煤巷围岩稳定性加权平均评价方法研究

Way of Transporting Pingxiang Coke of Han Yeping Coal and Iron Company to Wuhan Iron Factory

汉冶萍公司萍矿煤焦运往汉厂的运输方式考察

Analysis of the Stability of Open Mining SlopeIncluding the Underground Haulage Roadway

含运输巷道的露天矿边坡稳定性分析