1Influence of Aquifer Water Pressure upon Water Inrush Hazard of Floor FaultTest Research1-4,82Influence of Material Gas Concentration on Adsorption and Separation Effect of Low-concentration Oxygen-containing Coal-bed GasTest Research5-83Research on Gas Extraction Technology for Fully Mechanized Caving Face in a Double-outburst SeamLI Hua-wei, LIU Yu-de, YONG TaoTest Research9-124Study on Re-mixing Properties of Coal-dust Wetting AgentTest Research13-165Research on Surrounding Rock Stability Classification of Coal Roadway and Support Pattern in Huozhou Coal Mining AreaTest Research17-206Numerical Simulation of Dust Concentration Distribution in a Fully Mechanized Heading FaceTest Research21-22,257Numerical Simulation Study on Influence of Surrounding Rock's Uniformity upon Stability of Roadway near Gob AreaTest Research23-258Development and Test of Mine High-pressure Back Flush FilterGONG Xiao-bingTest Research26-289Research on Prevention and Control Technology for Gob Float Coal Spontaneous Combustion in a Fully-mechanized Face with Large-mining Height during Support WithdrawalApplication Techniques29-31,3510Application of Matlab Software in Mine Gas Emission PredictionApplication Techniques32-3511Application of Regional Outburst-prevention Technology by Gas Pre-drainage with Bedding Directional Long Holes in Extra-large Outbust MineWANG Ping-huApplication Techniques36-38,4212Research on Mining Roadway Failure Mechanism and Support in Three-soft Coal Seam in Shiping MineQIN Jun, HUANG Qing-xiang, LIU Yu-weiApplication Techniques39-4213Application of Time-series Analysis Method in Subsidence Observation of a Mining AreaFENG Da-fuApplication Techniques43-44,5114Comparison Analysis on Supporting Schemes for Roadways with Soft Coal WallLU Xue-feng, ZHANG Hong-jun, QIAN Zi-weiApplication Techniques45-47,5115Influence of Roof Convergency upon Gas Emission in a Fully Mechanized Caving Face during Initial MiningLI Fu-tao, YANG Sheng-qiang, CHENG TaoTechnical Experience48-5116Ventilation Management Technique for Long-distance Drivage of a Roadway with High Gas and Large Cross-SectionTechnical Experience52-5417Application on Pipe-roof Grouting Technology in Caving Hole ControlDU Zu-fuTechnical Experience55-56,6018Dust Prevention and Control Technology for Fully Mechanized Caving Face in Chengzhuang MineREN Hai-hui, CHEN Xiang-jun, LI HongTechnical Experience57-6019Treatment Technology for Fire-area Sealing in a High-gassy Outburst MineCHEN Jiu-fuTechnical Experience61-6320Determination of Spontaneous Combustion Three-zone Range of a Low-gassy Mine Based on Oxygen Concentration and Distance of Compacted AreaTechnical Experience64-65,68 