pillar drift

Controlling of rock burst in chain pillars between hydraulic mining face and drying mining face;

水旱交接处护巷煤柱冲击矿压控制

Through the statistical and theoretical analysis for the insitu examples of gobside entry retaining, the cut roof loads and deformations of the packfillings of gobside entry retaining which are revoked by the main roof breakage, are systematically studied under various conditions of the rock bodies surrounding roadway.

通过现场实测和理论分析研究，对在不同围岩条件下由老顶断裂时所引起的整体浇注护巷带的支护强度和变形能力进行了较为深入地研究，提出了能使沿空留巷巷道保持稳定的整体浇注护巷带的支护强度与变形的理论计算方法，进而对沿空留巷整体浇注护巷带的适应性进行了研究。

Roadway Supporting Technology Influenced by Mining and Protective Pillar Design

多次动压影响巷道支护技术及护巷煤柱留设

Mechanism of Narrow Pillar Protecting Roadway and Support Technology of Gob-Side Entry in Deep Mine

深井沿空巷道小煤柱护巷机理及支护技术

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

Numerical Simulation of Anchored Bolt Supporting for Roadway in Small Coal Pillar with Large Inclined Angle

大倾角煤层小煤柱巷道锚杆支护数值模拟研究

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

Study on Safe Mining of Island Coal and Roadway Maintenance Technology;

孤岛煤柱安全开采及巷道维护技术研究

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

Support Technology of Small Coal Pillar Goaf-side Gateway for Fully Mechanized Top Coal Caving Mining Face in Deep Mine

深部综放工作面小煤柱沿空巷道支护技术

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

Research on the Tunnel Supporting and Propriate Coal Wedre Preserving under the Provide of the Upper Plate of Qiling Coal Mine;

七岭煤矿坚硬顶板条件下巷道支护及合理煤柱留设研究

Research on Roadway Support Technique for Coal Pillar Mining in the Old Mining Area Known for Weak Seams

三软煤层老空区煤柱开采巷道支护技术试验研究

pillar of ground

运输平巷上方的煤柱

The Law of Ground Pressure and Itself Supporting of the Lane That the Narrow and Small Pillar Protected;

窄小煤柱护巷的矿压显现规律及其支护技术研究

Study on Protecting Entry Techniques under Anomalistic Pillar Conditions in Hong-Hui NO.4 Mine Fully Mechanized Caving Faces;

红会四矿综放工作面异形煤柱条件下护巷技术研究

Bolt Roadway Combined Support Technology in Large Section Coal Drift

大断面煤巷全锚杆巷道联合支护技术

Study on the Stability of Rock Surrounding Gateway with Different Coal-pillar Widths

煤柱宽度对巷道围岩稳定性影响分析

Behavior Law of Mine Pressure in Roadways Under Conditions of Mining With Coal Pillars

带煤柱开采条件下巷道矿压显现规律

Coal Roadway Bolt-Mesh Support Optimization Study of Jinyuan Colliery;

金源煤矿煤巷锚网支护方案优化研究