winning bord

The geology and hydrogeology, design, construetion and failure status of the head/tail gates in Liangjia Mine are investigated.

对梁家煤矿回采煤巷的地质，水文、设计、施工以及破坏状况进行了调查，分析其破坏机理，提出改进建议。

Research on plan through F_4 fault coal wall mining in Lingquan open coal mine;

灵泉煤矿过F_4断层煤壁回采方案

Surrounding Rock Deformation Law and Support Technology of Mining Gateway in Huagushan Mine

花鼓山煤矿回采巷道围岩变形规律及支护技术

Reinforced Technology of Xinliu Coal Mine Auxiliary Inclined Shaft for Coal Mining Face Short Distance Crossing Over Inclined Shaft

新柳煤矿回采工作面近距离跨采副斜井加固技术

Mine Pillars Mining with Small-scale Coal Mining Approach in Small Coal Mine

小型煤矿采用小进路采矿法的矿柱回采

Study on the Reclimaning of Fault Waterproof Coal Pillar in Mafang Mine;

马坊煤矿断层防水煤柱开采回收研究

The Research on the Coal Mine Extraction Cost System Prediction

煤矿工作面回采成本的系统预测研究

Research on the Pillar Extraction in Erxiashan Mining Area of Suhaitu Coal Mine

苏海图煤矿二下山采区煤柱回收方法研究

Second Mining Is an Effective Way for Small and Medium-sized Coal Mines to Increase the Coal Recovery Rate

复采是中小煤矿提高煤炭回收率的有效途径

The feasibility of extending the upper extraction limit for No.810 Mining Area of Luling Coal Mine

芦岭煤矿810采区提高回采上限的可行性研究

Location Optimization of Mining Gateway under Goaf in Seam with Closed Depth in Hexi Mine

贺西矿近距离煤层采空区下回采巷道布置优化

Technology Practice on Eliminating Gas Outburst at First Section of 11041 Stope Face Mining in Machi Coal Mine

马池煤矿11041回采工作面首采段消突技术实践

pillar robbing

【采矿】回收矿柱法

Study of Optimum Mining Method in No 2. Distriction of Longhu Coal Mine in Qitaihe Mining Area;

七台河矿区龙湖煤矿二采区最佳回采工艺方式的研究

With the increase of the depth of coal seams mined, rock bursts will easily occur in gateways with fully-mechanized sublevel caving mining.

随着煤矿开采深度增加，综放开采回采巷道易发生冲击地压危害。

Confirmation of safety mining upper limit and its practice in Jining local coal mine

安全回采上限的确定及在济宁地方煤矿的实践

12101 stope drift active workings of slate coal mine 21# coal seams head mining area rockbolt ally self with the shoring technology

板石煤矿12101回采巷道锚杆联合支护技术

Mining Practices of Fully Mechanized Top Coal Caving Mining Face in Deep Inclined Seam of Meihe Mine

梅河煤矿大倾角综放工作面回采工艺实践

Application of Recoverable Gas Drainage Borehole Sealing Tubing Technology to Hecun Coal Mine

可回收瓦斯抽采封孔管技术在何村煤矿的应用

Support of Technology Mining Gateway with Mining Dynamic Broken Surrounding Rocks in Wangzhuang Coal Mine

王庄煤矿动压破碎围岩回采巷道支护技术