1Theoretical Study on Stress Distinguishing Index of Gas Pressure Fully Released in Mining Seam1-52Analysis on Roof Falling Hidden Danger Grading of Mining Gateway6-9,1043Analysis on Main Control Factors of Strip Mining in Multi Seams Based on Normal Test Design10-12,164Grouting/Shotcreting/Bolting Support Technology of Gateway with Extreme Loose Coal Mass13-165Research on Support Method and Surrounding Rock Deformation Law of Secondary Gateway Retained Along Goaf17-19,456Analysis Calculation on Single Pipeline Freezing Temperature Field Under Non-Constant Condition of Pipe Wall Temperature20-23,827Study on Stability Control Technology of Ingate in Thick Alluvium Soft Rock of Deep Mine Shaft24-27,1258Study on Upper Liberated Seam Mining to Pressure Releasing Function of Low Seam28-31,619Study and Application of Technical System to Improve Lump Coal Rate from Drilling and Blasting Mining32-3610Analysis on Construction Monitoring and Measuring of Ground Freezing Method for Water Flooded Mine Shaft in the West of China37-40,9411Analysis on Gas Deposit Law in Low Gassy Mine with Irregular Gas Emission41-4512Effective Surrounding Pressure Affected to Permeability of Coal Mass During Seam Water Injection46-48,5213Application of Outburst Elimination Technology with Hydraulic Pressing to Seam Gateway Driving in Shuijingtou Mine49-5214Study on Coal Oxidized Dynamics Test with Low Temperature Based on CO Density53-5515Design on Borehole Drilling Site for Mine Gas Drainage Based on Gas Migration Features in Goaf56-6116Study on Gas Distribution Law of Driving Process in Blind Seam Gateway62-64,6917Problems Existed in Regional Comprehensive Outburst Prevention Technology of Coal Mining Face and Countermeasures65-6918Application of Flooded Water Jet Rotary Slotting Technology to Gateway Driving in Outburst Seam70-73,11719Fire Prevention and Control Measures as well as Fire Cause Analysis for Fully Mechanized Top Coal Caving74-7720Discussion on Features and Classification of Intrinsic Safe Flame Proof System and Intrinsic Safe Electric Power Structure78-82 