Coal Science and Technology Articles

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1Study on Geostress Measurement and Distribution Law of Dynamic Phenomenon Frequently Occurred in Mining Area1-3,7

2Study on Temperature Field Distribution Law of Freezing Wall for Inclined Shaft4-7

3Study and Practices on Changing from Fully Mechanized High Cutting Coal Mining to Fully Mechanized Top Coal Caving Mining in Buertai Mine8-10,14

4Study on Pressure Released Technology of Shortwall Mining Face11-14

5Study on Factors Affected to Stability of Water Prevention Coal Pillar in Steep Inclined Seam Mining15-18,23

6Experiment Study on Secondary Grouting Reinforcement of Broken Surrounding Rock in Large Loose Circle19-23

7Bolt Support Technology of Gateway with High Stress Broken and Swelling Roof24-26

8Numerical Analysis on Roof Raining Affected to Surrounding Rock Deformation of Mine Gateway27-30,34

9Study on Geostress Measurement by Hydrallic Fracturing Method in Mine Soft Rock Roadway31-34

10Study on Micro Seismic Monitoring and Measuring Technology in High Cutting Fully Mechanized Top Coal Caving Mining of Deep Mine35-37,41

11Drilling Construction Test of ZYWL-6000D Directional Drilling Rig38-41

12New Gas Drainage Technology of Single Outburst Seam in Pingdingshan Mining Area42-47

13Permeability Improved Technology and Practices with Deep Borehole Energy Accumulation Blasting in Low Permeability Seam48-51

14Practice on Comprehensive Gas Drainage Technology in High Gassy Mine52-54,96

15Study on Comparison of Methods to Determine Gas Drainage Radius and Existed Problems55-58,110

16Study on the Methods of Eliminating Blank Zone of Mine Gas Drainage59-61,87

17Moisture Content Affected to Initial Gas Emission Velocity of Different Ranking Coal62-65

18Study on Dynamic Features of Leg Applied to Hydraulic Powered Support Under Bumping Load66-70

19Design on Energy Collection System in Underground Mine Based on Piezoelectric Effect71-74,79

20Design on Inner Loading Hydraulic Pressure Test System of Large diameter Double Telescopic Leg75-79